Perhaps you should try some spelling variations:
cost sharing » risk sharing, cost savings
sharing tan » sharing tags, sharing a, sharing bad
wang wang » wang yang, wang liang, wang yan
laying a » laying _, playing _, buying a
wong yue » hong yu
wang yue » wang hua, wang yan, wang he
ying a » buying a, ying hua

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 ((ying a) OR (laying a)) cost sharing tan ((wong yue) or (wang yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang ((ying a) OR (laying a)) cost sharing tan ((wong yue) OR (wang yue)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ((ying a) OR (laying a)) cost sharing tan ((wong yue) or (wang yue)) ;*".