Perhaps you should try some spelling variations:
sharing oil » sharing our, sharing big, sharing his
wing yan » wang yan, wing ian, wing tan
hua cost » a cost, eu cost
run cost » iran cost, run cash, run out
can cost » can costa, can lost, can post
oil ying » oil using, oil line
ying shu » ying zhu, cong shu, ying hua
yan yi » yang yi, tan yi, yan zi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan yi ((hua cost) OR (((run cost) OR (can cost)))) sharing oil ying shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing yan yi ((hua cost) or (((run cost) OR (can cost)))) sharing oil ying shu ;~".
• Adding a wildcard symbol may retrieve word variants: wing yan yi ((hua cost) or (((run cost) OR (can cost)))) sharing oil ying shu ;*.