Perhaps you should try some spelling variations:
iran cost » urban cost, iran case, can cost
sharing a » sharing _
hua cost » a cost, eu cost, run cost
ying shu » ying zhu, cong shu, ying hua
up cost » up costs
yan yi » yang yi, tan yi, yan zi
a ying » ka ying, _ ying, fan ying
wang » wing, wan, lang

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: wang yan yi ((((hua cost) OR (up cost))) OR (iran cost)) sharing a ying shu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan yi ((((hua cost) or (up cost))) or (iran cost)) sharing a ying shu ;*.