Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
tuan china » wuhan china, can china, taiwan china
yang wang » yang yang, yan wang, yang liang
di langue » de langue, de langues, la langue
langue do » langue de, langue du, language do
pei yang » wei yang, hui yang, yi yang
pei yun » lei kyun, mei yung, wei yuan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang wang) or (yang guang)) ((tuan china) or (wang hua)) ((pei yang) OR (pei yun)) di langue do ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang wang) OR (yang guang)) ((tuan china) OR (wang hua)) ((pei yang) OR (pei yun)) di langue do ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang wang) or (yang guang)) ((tuan china) or (wang hua)) ((pei yang) OR (pei yun)) di langue do ;".
• Adding a wildcard symbol may retrieve word variants: ((yang wang) or (yang guang)) ((tuan china) or (wang hua)) ((pei yang) OR (pei yun)) di langue do ;*.