Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
things 1 » things _, things a, thing _
tan yang » dan yang, tan ying, tan yong
liang 3 » lang 3, liang _, liang li
3 smart » a smart, 4 smart, 3.2 smart
sin » sign, sind, skin

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: wang yang liang 3 smart things 1 ((((yang yang) OR (tan yang))) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang liang 3 smart things 1 ((((yang yang) or (tan yang))) or (dong sin)) ;*.