Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
pei yang » wei yang, hui yang, yi yang
long ago » long arm
tuan vu » thanh vu, tuan hua
pei yun » lei kyun, mei yung, wei yuan
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: ((yang liang) or (yang guang)) tuan vu ((pei yang) OR (pei yun)) 3.2 ((long ago) or (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yang guang)) tuan vu ((pei yang) OR (pei yun)) 3.2 ((long ago) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) tuan vu ((pei yang) OR (pei yun)) 3.2 ((long ago) or (long du)) ;*".