Keyword Search Search using Advanced Boolean Operators (+/-/blank) or phrase searching with quotes ("").

Example queries
"Ruhama baptist"
Using quotes only returns results with the exact phrase "ruhama baptist"
+Ruhama +Baptist
Returns results with both "ruhama" and "baptist" not necessary adjacent
+davis -correspondence
Returns results containing "davis" but excludes results which have "correspondence"
letters correspondence
Returns results with either "letters" or "correspondence" or both, anywhere in the results
+davis +(correspondence papers)
Returns results matching (+davis +correspondence) or (+davis +papers) or both.
+davis*
Searching with wildcard* will bring back the following: davis, davison, etc.