Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing a » sharing _
yan yang » yang yang, dan yang, tan yang
yao yang » yang yang
wong sau » wong sam, wong siu, wong shiu
wong yue » wang yue, hong yu
yi rent » oil rent

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: wan ((yan yang) OR (yao yang)) yi rent sharing a ((wong sau) OR (((wong yue) OR (wang yan)))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yan yang) OR (yao yang)) yi rent sharing a ((wong sau) or (((wong yue) or (wang yan)))) ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((yan yang) OR (yao yang)) yi rent sharing a ((wong sau) or (((wong yue) or (wang yan)))) ;*.