Perhaps you should try some spelling variations:
planning chain » planning china, planning can, planning gain
banking case » banking crises, banking a
china yang » china ying, china wang, china chang
long green » going green, long grain
yang vein » yang dean, hand vein, yang lin
yang jin » yang jie, yang jun, ying jin

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((banking case) OR (planning chain)) china yang ((yang vein) OR (yang jin)) long green ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((banking case) or (planning chain)) china yang ((yang vein) OR (yang jin)) long green ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((banking case) or (planning chain)) china yang ((yang vein) OR (yang jin)) long green ;*.