Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
yang yang » wang yang, wang yan
de longue » der longue, de langue, de langues
wei wang » wei yang, wen wang, wei shang
tan hua » tuan hua, wang hua, tan chia
pei yun » lei kyun, mei yung, pei yang
de long » le long

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan liang) or (yang yang)) tan hua ((pei yun) or (wei wang)) ((de long) OR (de longue)) du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang yang)) tan hua ((pei yun) OR (wei wang)) ((de long) OR (de longue)) du ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang yang)) tan hua ((pei yun) or (wei wang)) ((de long) OR (de longue)) du ;*".