Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
than china » tuan china, han china, wuhan china
fei langue » de langue, en langue
yang wang » yang yang, yan wang, yang guang
langue du » langue de
pei wang » pei yang, wei wang, li wang
wang fei » wang wei, wang zhi, wang he

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 wang) OR (yang liang)) ((than china) OR (wang hua)) pei wang fei langue du ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang wang) or (yang liang)) ((than china) or (wang hua)) pei wang fei langue du ;*.