Perhaps you should try some spelling variations:
liang yang » liang ying, wang yang, huang yang
cost using » costs using, cost housing, test using
using risk » during risk, using rs, funding risk
yang yang » wang yang, wang yan
risk tong » risk among, risk along
end cost » end close, land cost, end iot
tong hui » wang hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((liang yang) or (yang yang)) end cost using risk tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang yang) OR (yang yang)) end cost using risk tong hui ;*.