Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
pei yang » wei yang, hui yang, pei yun
tan hua » tuan hua, wang hua, tan chia
hua pei » hua wei
4 long » 14 long, a long, 3 long
2 long » a long, 3 long, 3.2 long

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan liang) or (yang yang)) tan hua pei yang ((4 long) OR (2 long)) d ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang yang)) tan hua pei yang ((4 long) OR (2 long)) d ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang yang)) tan hua pei yang ((4 long) OR (2 long)) d ;*".