Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
can child » care child, can build, can china
chen wang » chen rong, chen ping
chen yang » chen rong
longer do » longer _, longer a, long do
3 longer » _ longer, 2 longer, 3 langer

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 child ((chen wang) OR (chen yang)) 3 longer do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) can child ((chen wang) OR (chen yang)) 3 longer do ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) can child ((chen wang) OR (chen yang)) 3 longer do ;*.