Perhaps you should try some spelling variations:
dong ryang » dong yang
dong hoang » hong hong
yang hui » yang jui, yang muxi, zhang hui
wang hui » wang hua, wang zhi, wang wei
ping shu » cong shu, ping ku, ping yu
yet ma » yet a
ma wei » ha wei, mr wei
ryang » rryang
yan » ryan
yang » ryang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((dong ryang) or (dong hoang))) or (wang yan)) yet ma wei ((yang hui) OR (wang hui)) ping shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong ryang) OR (dong hoang))) OR (wang yan)) yet ma wei ((yang hui) OR (wang hui)) ping shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((dong ryang) or (dong hoang))) or (wang yan)) yet ma wei ((yang hui) OR (wang hui)) ping shu ;*".