Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
test dang » test data
dan yang » daun yang, tan yang, wang yang
facing a » facing _
hai wang » hai anh, hwa wang, li wang
wang yue » wong yue, wang hua, wang yan
wang a » wang _, fang a, lang a

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 (yang yang)) ((wang a) or (facing a)) test dang hai wang yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dan yang) OR (yang yang)) ((wang a) OR (facing a)) test dang hai wang yue ;.
• Adding a wildcard symbol may retrieve word variants: ((dan yang) or (yang yang)) ((wang a) or (facing a)) test dang hai wang yue ;*.