Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
sharing a » sharing _
yao yang » yang yang
au costa » can costa, _ costa, da costa
der cost » oder cost, user cost, debt cost
eu cost » end cost, eu court, run cost
hong yu » wong yue
a hong » _ hong, kia hong, tan hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((wang yang) or (yao yang)) ((((eu cost) OR (au costa))) or (der cost)) sharing a hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((wang yang) OR (yao yang)) ((((eu cost) OR (au costa))) OR (der cost)) sharing a hong yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang ((wang yang) or (yao yang)) ((((eu cost) OR (au costa))) or (der cost)) sharing a hong yu ;*".