Perhaps you should try some spelling variations:
sharing gains » sharing savings, learning gains, securing gains
rent sharing » risk sharing, rent seeking, cost sharing
wang yong » wang yang, wang hyoung, wang yan
phang der » anhang der, klang der, zwang der
how slow » how low, how slower, grow slow
how so » how some

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yong ((phang der) OR (gang der)) rent sharing gains ((how so) or (how slow)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yong ((phang der) OR (gang der)) rent sharing gains ((how so) OR (how slow)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong ((phang der) OR (gang der)) rent sharing gains ((how so) or (how slow)) ;*".