Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
yuan ting » yuan ming, huang ting, yuan kang
wang li » wang lei, wang lin, tang li
li test » ai test, i test, ii test
yang li » yang lin, yang xi, yang yi
hong yu » wong yue

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) or (yang yang)) wang li test ((yuan ting) or (((yang li) or (yang di)))) hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (yang yang)) wang li test ((yuan ting) OR (((yang li) OR (yang di)))) hong yu ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (yang yang)) wang li test ((yuan ting) or (((yang li) or (yang di)))) hong yu ;*.