Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yang time » long time, yang jie, lag time
time lost » time cost, time loss, time list
lost thin » last thing
thin zeng » thin end, thin lens
dong sign » dong sin, among sign
dong skin » dong sin, dof skin
wan yang » wang yang, dan yang, tan yang
dong bin » dong sin, dong di, dann bin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yang yang time lost thin zeng ((((dong sign) or (dong bin))) or (dong skin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yang yang time lost thin zeng ((((dong sign) OR (dong bin))) OR (dong skin)) ;*.