Perhaps you should try some spelling variations:
wang danning » wang yanling, wang daoping, wang yangming
danning yang » manning ryann
yang per » yang yera
per test » der test, der tests, per cent
kit hong » kia hong, kai hong, ky hong
tin hong » tan hong, kia hong, thi hong
jong su » jeong su, rong su, cong sun

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang danning yang per test ((kit hong) or (tin hong)) jong su ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang danning yang per test ((kit hong) OR (tin hong)) jong su ;*.