Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan wang » yuan wang, qian wang, yan liang
tuan hua » tan hua, yuan hui
pei yang » wei yang, pei yun, yi yang
hui yang » hui ying, du yang, h yang
jie long » jie song, life long, live long
tuan vu » thanh vu
long du » long d, long do, long run

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yang yang)) ((tuan hua) or (tuan vu)) ((pei yang) or (hui yang)) jie long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yang yang)) ((tuan hua) OR (tuan vu)) ((pei yang) OR (hui yang)) jie long du ;.
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yang yang)) ((tuan hua) or (tuan vu)) ((pei yang) or (hui yang)) jie long du ;*.