Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yuan ting » yuan ming, huang ting, yuan kang
yan wang » yuan wang, qian wang, yan liang
out test » out west, about test, root test
wang lin » wang li, wang qin, yang lin
yan tin » yang jin, yang lin
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yan wang) OR (yang yang)) out test ((((yan tin) OR (yuan ting))) OR (wang lin)) hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yan wang) OR (yang yang)) out test ((((yan tin) OR (yuan ting))) OR (wang lin)) hong yu ;".
• Adding a wildcard symbol may retrieve word variants: dong ((yan wang) OR (yang yang)) out test ((((yan tin) OR (yuan ting))) OR (wang lin)) hong yu ;*.