Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
dan yang » daun yang, tan yang, yang yang
api test » ai test, i test
yang jie » yang jin, yang di, yang jui
yang lin » yang jin, wang lin, yang li
wong yue » wang yue, hong yu
ii test » ai test, i test, ii texts

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dan yang) or (wang yang)) wang ((ii test) or (api test)) ((yang jie) or (yang lin)) wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dan yang) OR (wang yang)) wang ((ii test) OR (api test)) ((yang jie) OR (yang lin)) wong yue ;.
• Adding a wildcard symbol may retrieve word variants: ((dan yang) or (wang yang)) wang ((ii test) or (api test)) ((yang jie) or (yang lin)) wong yue ;*.