Perhaps you should try some spelling variations:
yang liang » wang liang, yang yang, peng liang
yan liang » wang liang, you liang, yan wang
tuan hua » tan hua, tuan vu, yuan hui
hui yang » hui ying, du yang, h yang
wei yang » pei yang, wei wang, wei yang's
3 long » a long, 3.2 long, 3.1 long
2 long » a long, 3.2 long, 6.2 long

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang liang)) tuan hua ((hui yang) OR (wei yang)) ((3 long) OR (2 long)) do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang liang)) tuan hua ((hui yang) or (wei yang)) ((3 long) OR (2 long)) do ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yang liang)) tuan hua ((hui yang) or (wei yang)) ((3 long) OR (2 long)) do ;*.