You can only search for a primitive text string - don't try boolean
operators or wildcards.
Instead of wildcards, just leave the word as it is - e.g. pierc
for pierced, piercing and piercings
Sometimes it's v e r y slow !
... and sometimes it gives a "no match" reply in spite of the fact
that there are several matches. You might want to repeat the search, then
... it might yield a good result second or third time.
There's an implicit boolean "or" between two or more words in the search
- summer cummings means summer or cummings. It won't help putting quotes
around the words.