Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing oil » sharing our, sharing big, sharing his
ying chang » jin chang, yi chang, yin hang
ying yang » yang yang, yin yang, wang yang
yang hua » wang hua, yang hui, ying hua
hua rent » hua ren
kong » hong, ong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ying yang) or (ying chang)) yang hua rent sharing oil ((kong OR pong) or long) (sar or saur) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ying yang) OR (ying chang)) yang hua rent sharing oil ((kong OR pong) OR long) (sar OR saur) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ying yang) or (ying chang)) yang hua rent sharing oil ((kong OR pong) or long) (sar or saur) ;*".