Perhaps you should try some spelling variations:
"philologisch" » "philologische", "philologica", "philologie"
"philologists" » "philologie", "philologiae", "philological"
"philosophisch" » "philosophische", "philosophischen", "philosophical"
"philosophischer" » "philosophischeer", "philosophischener", "philosophicaler", "philosophische", "philosophischen"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ("philologisch" OR ("philologists" OR ("philosophisch" OR "philosophischer"))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(\"philologisch\" or (\"philologists\" or (\"philosophisch\" OR \"philosophischer\")))".
• Removing quotes may allow a broader search: ( philologisch or ( philologists or ( philosophisch OR philosophischer ))).
• Adding a wildcard symbol may retrieve word variants: ("philologisch" or ("philologists" or ("philosophisch" OR "philosophischer")))*.