Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
de longue » der longue, de langue, de langues
yan guan » gan guan, yan yuan, yang guang
tuan hua » tan hua, yuan hui
hui yang » hui ying, du yang, h yang
tuan vu » thanh vu
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: ((yang liang) or (yan guan)) ((tuan hua) or (tuan vu)) hui yang ((de long) or (de longue)) d ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang liang) OR (yan guan)) ((tuan hua) OR (tuan vu)) hui yang ((de long) OR (de longue)) d ;.
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yan guan)) ((tuan hua) or (tuan vu)) hui yang ((de long) or (de longue)) d ;*.