Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yan liang » yang liang, wang liang, you liang
yuan hui » yuan fei, jaan hui, tuan hua
pei yang » wei yang, hui yang, yi yang
3.2 long » 3.2 land
pei yun » lei kyun, mei yung, wei yuan
2 long » a long, 3 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 guang)) yuan hui ((pei yang) OR (pei yun)) ((3.2 long) OR (2 long)) do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang guang)) yuan hui ((pei yang) OR (pei yun)) ((3.2 long) or (2 long)) do ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan liang) or (yang guang)) yuan hui ((pei yang) OR (pei yun)) ((3.2 long) or (2 long)) do ;*.