Perhaps you should try some spelling variations:
wang wang » wang yang, wang liang, wang yong
can soils » clay soils, can skills, can skill
real plan » ideal plan, el plan, rail plan
hong hai » shang hai, zhong tai, dang hai
wong yue » wang yue, hong yu
can oil » can only, corn oil, oman 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 wang) or (wang yan)) ((can oil) OR (can soils)) real plan li ((hong hai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang wang) OR (wang yan)) ((can oil) OR (can soils)) real plan li ((hong hai) OR (wong yue)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang wang) or (wang yan)) ((can oil) OR (can soils)) real plan li ((hong hai) or (wong yue)) ;".
• Adding a wildcard symbol may retrieve word variants: ((wang wang) or (wang yan)) ((can oil) OR (can soils)) real plan li ((hong hai) or (wong yue)) ;*.