Perhaps you should try some spelling variations:
yang liang » wang liang, yang yang, peng liang
yan liang » wang liang, you liang, yan wang
pei zwang » kein zwang, der zwang, dem zwang
zwang 3.2 » zwang 2.2
yan guan » gan guan, yan yuan, yang guang
3.2 long » 3.2 land
tuan vu » thanh vu, tuan hua
tan hua » tuan hua, wang hua, tan chia
long du » long d, long do, long run

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: ((((yang liang) OR (yan liang))) OR (yan guan)) ((tuan vu) OR (tan hua)) pei zwang 3.2 long du ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang liang) OR (yan liang))) or (yan guan)) ((tuan vu) or (tan hua)) pei zwang 3.2 long du ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang liang) OR (yan liang))) or (yan guan)) ((tuan vu) or (tan hua)) pei zwang 3.2 long du ;*.