Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
deng gang » den gang, der gang, gong gang
can chia » tan chia, can child, can asia
wen gang » den gang, wen wang, weng fang
long du » long d, long do, long run
3 long » a long, 2 long, 3.2 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: ((yang liang) OR (yang guang)) ((can chia) OR (can china)) ((wen gang) OR (deng gang)) 3 long du ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) ((can chia) or (can china)) ((wen gang) OR (deng gang)) 3 long du ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) ((can chia) or (can china)) ((wen gang) OR (deng gang)) 3 long du ;*.