Perhaps you should try some spelling variations:
yang wang » yan wang, yang guang, yang liang
yang yang » wang yang, wang yan
wei test » ein test, ai test, api test
ying jin » yang jin, jing ji, yang jie
wong yue » wang yue, hong yu
yang yi » yang di, yang jui
yang xi » yang di, yang jui

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 wang) or (yang yang)) wei test ((ying jin) or (((yang yi) or (yang xi)))) wong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yang wang) OR (yang yang)) wei test ((ying jin) OR (((yang yi) OR (yang xi)))) wong yue ;.
• Adding a wildcard symbol may retrieve word variants: wang ((yang wang) or (yang yang)) wei test ((ying jin) or (((yang yi) or (yang xi)))) wong yue ;*.