Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
tuan hua » tuan vu, yuan hui
pei yang » wei yang, hui yang, pei yun
yang 3.2 » zwang 3.2, yang 4.3, yang y.c
tan hua » wang hua, tan chia, tan puay
long do » long d, longer do, long ago
long du » long d, long run, long did

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)) ((tuan hua) or (tan hua)) pei yang 3.2 ((long do) OR (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang yang)) ((tuan hua) OR (tan hua)) pei yang 3.2 ((long do) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang yang)) ((tuan hua) or (tan hua)) pei yang 3.2 ((long do) OR (long du)) ;*".