Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
real plan » ideal plan, el plan, rail plan
yang can » yang fan, yang dean, yang yang
oil real » oil coal, oil rent
wong yue » wang yue, hong yu
can oil » can soils, can only, corn oil
plan li » plan la, plan les, plan als

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang can oil real plan li ((dang hai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang can oil real plan li ((dang hai) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yang can oil real plan li ((dang hai) or (wong yue)) ;*.