Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
tuan china » wuhan china, can china, taiwan china
yang yang » wang yang, wang yan
china dan » china den, china data, china des
2 langere » b langere, 3.2 langere, 2 lander
dan yang » daun yang, tan yang, wang yang
2 longer » _ longer, 3 longer, a longer

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)) tuan china dan yang ((2 longer) OR (2 langere)) do ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang yang)) tuan china dan yang ((2 longer) or (2 langere)) do ;*.