Perhaps you should try some spelling variations:
sharing mining » making mining
cost sharing » risk sharing, cost savings
mining work » finding work, making work, training work
doing sin » dong sin
wang yang » wang liang, wang yanling
work sau » work a, work pay, wong sau
a cost » _ cost
ya a » a a, ka a
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 a cost sharing mining work sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doing sin) OR (((wang yang) OR (wang yan)))) ya a cost sharing mining work sau ;.
• Adding a wildcard symbol may retrieve word variants: ((doing sin) or (((wang yang) or (wang yan)))) ya a cost sharing mining work sau ;*.