Integer 
3 
Indicates the minimum number of search terms to be
matched. 
Negative integer 
2 
Indicates that the number of search terms, minus this
number, should be matched. 
Percentage 
75% 
Indicates the minimum percentage of search terms to be
matched. The minimum number of search terms is the number
computed from the percentage rounded down. 
Negative percentage 
25% 
Indicates that the number of search terms, minus this
percentage, should be matched. The minimum number of search
terms is the number computed from the percentage rounded
down and subtracted from the total number of search
terms. 
Combination 
3<70% 
A positive integer, followed by a less than symbol,
followed by any of the previously mentioned input types.
Indicates that if the number of search terms is equal to
or less than the integer, all search terms are required.
If the number of search terms is greater than the
integer, the specification applies.
In this example: if there are 1–3 search terms, all are
required. If there are 4 or more search terms, only 70%
are required.

Multiple combinations 
3<25%, 9<5 
Multiple conditional specifications separated by commas.
In this example: if there are 1–3 search terms, all are
required. If there are 4–9 search terms, all but 25% are
required. If there are more than 9 search terms, all but
5 are required.
