Perhaps you should try some spelling variations:
wang shawn » tan shawn
wang wang » wang yang, wang liang, wang yan
shawn oil » shale oil, shawn sim, than oil
real ling » real long, real line, real thing
zhong zhi » zhang zhi, hong ghi, zhong tai
oil real » oil coal, oil rent
wong yue » wang yue, hong yu

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 shawn oil real ling li ((zhong zhi) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang shawn oil real ling li ((zhong zhi) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang wang shawn oil real ling li ((zhong zhi) or (wong yue)) ;*.