Perhaps you should try some spelling variations:
sharing mining » making mining
cost sharing » risk sharing, cost savings
mining wong » mining work
doing sin » dong sin
wang yang » wang liang, wang yanling
hua cost » a cost, up cost, run cost
wong sau » kong sar
yang » ryang
yan » ryan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doing sin) or (((wang yang) or (wang yan)))) ya hua cost sharing mining wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doing sin) OR (((wang yang) OR (wang yan)))) ya hua cost sharing mining wong sau ;.
• Adding a wildcard symbol may retrieve word variants: ((doing sin) or (((wang yang) or (wang yan)))) ya hua cost sharing mining wong sau ;*.