There are specific tools that make searching this database easier:

la sutysisku dictionary, an offline enabled web app

la vlasisku search engine for the Lojban dictionary

        Word: ju'au [jbovlaste]
        Type: experimental cmavo (YOU RISK BEING MISUNDERSTOOD IF YOU USE THIS WORD)
  Gloss Word: named number base
  Gloss Word: number base in the sense of "named"
  Gloss Word: string-reading order specifier
     selma'o: JUhAU
  Definition: semi-mathematical binary operator: named number base
       operator/interpreter
       Notes: Follows a number and is followed by a sumti string (introduced
       with appropriate gadri, multiple sumti strung together via
       connectives); scope terminates with the end of the sumti and/or
       with ke'e'au. The construct as a whole syntactically
       functions as a parenthetical so that mekso may be resumed
       immediately thereafter without any difficulty. This word
       attaches to/affects the immediately preceding macrodigit string
       extending from the last evaluated number, number operation,
       etc. or bracket to/until this word. The preceding number is
       semantically interpreted according to the description to which
       the following sumti refers. If a sequence is supplied as the
       following sumti, the preceding number is interpreted so that
       each digit, starting from the left (default: see next), is
       understood as a multiple of the corresponding value in the
       sequence under the ordering given (which may produce an
       invalid/ill-formed result; the placement of pi matters as
       well).  If a single number is submitted (such as "li dau"),
       this word acts as ju'u; the number is interpreted according
       to the rules of mekso and is its own island for such
       interpretation (thus ju'u is needed to override a
       cultural/grammatical default interpretation, such as decimal,
       even if this is done within the mekso expression outside of and
       including the scope of this word). In this way, the sumti being
       (10^n)_n, which is a sequence, is the same as the sumti being
       just 10, but is very different from it being the sequence
       (10)_n.  The original default for numeral-position/string
       reading/interpretation is from left-to-right, where a digit on
       the left in a pair of digits represents that multiple of a
       "later" term in the sequence as compared to right member of the
       pair; thus "23" in decimal means (2*(10^1)) + (3*(10^0)), which
       is twenty-three.  This default may be overridden via
       specification of the sequence (either its ordering, its domain
       being negated, or alteration to the base); alternatively, and
       perhaps more easily, the appearance of "la'e zoi jbo. ri'u bi'o
       zu'a .jbo" will always reverse it (this is a special input
       value with interpretation defined by this grammar); when
       reversed, "23" in decimal means (2*(10^0)) + (3*(10^1)), which
       is to say thirty-two.  Generally, this word overrides the
       default interpretation of a string of microdigits when
       computing the value of a macrodigit (see: ju'u'i). See also:
       ju'u, ju'u'i, pi'e.