Perhaps you should try some spelling variations:
credit deliver » credit delivery, create deliver, credit driven
equal credit » dual credit, equity credit, rural credit
wang liang » wang yang
value cong » value closing, value change
value co » value _, value a
a equal » _ equal, 6 equal, can equal

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((dong or doing) sin) or (wang liang)) a equal credit deliver ((value cong) OR (value co)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((dong OR doing) sin) OR (wang liang)) a equal credit deliver ((value cong) OR (value co)) shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((dong or doing) sin) or (wang liang)) a equal credit deliver ((value cong) OR (value co)) shu ;*".