Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
yang yang » wang yang, wang yan
can child » care child, can build, cbt child
deng gang » den gang, der gang, gong gang
long du » long do, long run, long did
gang 3 » gang _, lang 3, wang 3
long d » long do, long _, long 2

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 yang)) ((can child) OR (can china)) deng gang 3 ((long du) OR (long d)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang yang)) ((can child) or (can china)) deng gang 3 ((long du) OR (long d)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang yang)) ((can child) or (can china)) deng gang 3 ((long du) OR (long d)) ;*.