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
zhong zhi » zhang zhi, hong ghi, zhong tai
oil rent » oil rents, oil trend, oil real
liang li » ling li, liang wei, liang zhi
qiang li » qiang niu, ling li, qian yi
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 rent ((liang li) OR (qiang li)) ((zhong zhi) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang shawn oil rent ((liang li) OR (qiang li)) ((zhong zhi) OR (wong yue)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang shawn oil rent ((liang li) OR (qiang li)) ((zhong zhi) or (wong yue)) ;".
• Adding a wildcard symbol may retrieve word variants: wang wang shawn oil rent ((liang li) OR (qiang li)) ((zhong zhi) or (wong yue)) ;*.