Perhaps you should try some spelling variations:
"geologie" » "ideologie", "geology"
"geologic" » "geology"
"geologics" » "geologys", "geologicos", "geologies", "geologici"
"geological" » "geologyal"
"geologisch" » "geologische", "geologischen", "geologischer"

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: (("geologie" OR "geologic") OR ("geologics" OR ("geologisch" OR "geological"))).
• Removing quotes may allow a broader search: (( geologie or geologic ) or ( geologics or ( geologisch or geological ))).
• Adding a wildcard symbol may retrieve word variants: (("geologie" or "geologic") or ("geologics" or ("geologisch" or "geological")))*.