Perhaps you should try some spelling variations:
wang danning » wang yanling, wang daoping, wang yangming
danning yang » manning ryann
der tests » des tests, der trusts, user tests
hong song » hong kong, hong jong, hong hong
der test » der text, per test, der texte
kim hong » kia hong, kim song, kim dong
song su » rong su, song so, 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 ((der test) OR (der tests)) kim hong song su ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang danning yang ((der test) OR (der tests)) kim hong song su ;*".