Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing oil » sharing our, sharing big, sharing his
yang yang » wang yang
hua rent » hua ren
oil ying » oil using, oil line
ying shu » ying zhu, cong shu, ying hua
yi hua » li hua, ya hua, yi hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) OR (wang yan)) yi hua rent sharing oil ying shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) OR (wang yan)) yi hua rent sharing oil ying shu ;*".