Syntax: select box
This setting controls how suffix/wildcard processing - as determined by the Word Forms setting - is applied to phrases. Single-word terms always have suffix/wildcard processing applied; however phrases - multi-word terms bound by hyphens or in double-quotes - are only processed if this setting allows it.
There are two choices:
Last word only: Only process the last word in the phrase; this is the default. For example, with this value set (and Word Forms set to Any word forms) the query "
"vacuum cleaner"" would match "vacuum cleaner" as well as "vacuum cleaners".
None: Do no processing on phrase words. With this value set, the query "
"vacuum cleaner"" would only match "vacuum cleaner", regardless of Word Forms.
Note that a single word term is not a phrase - even if double-quoted - and thus Phrase Word Processing does not apply to it.