Perhaps you should try some spelling variations:
der gender » der lender, der genres, gender gender
congo mali » congo call
wang yang » wang yan, wang liang, wang yanling
long call » long haul, long tail
yang dan » yang dean, yang fan, wang dan
dan der » van der, man der, dan er
spur » sur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang dan der gender ((congo mali) or (long call)) der spur ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang dan der gender ((congo mali) OR (long call)) der spur ;*.