Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
wei yang » pei yang, wei wang, wei yang's
y.c long » 3.2 long, 3.1 long, 2.4 long
2.2 long » 3.2 long, 6.2 long, 2.4 long
tuan vu » thanh vu, tuan hua
tan hua » tuan hua, wang hua, tan chia

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 yang)) ((tuan vu) OR (tan hua)) wei yang ((y.c long) OR (2.2 long)) d ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang yang)) ((tuan vu) or (tan hua)) wei yang ((y.c long) OR (2.2 long)) d ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yang yang)) ((tuan vu) or (tan hua)) wei yang ((y.c long) OR (2.2 long)) d ;*.