Perhaps you should try some spelling variations:
planning chain » planning china, planning can, planning gain
banking case » banking crises, banking a
china yang » china wang, china chang, china zhang
china ying » china during, china daqing, china rising
long chain » long chemin, long grain, long han
wang pain » wang yan, hand pain, wang ban

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) OR (china ying)) wang pain long chain ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((banking case) or (planning chain)) ((china yang) OR (china ying)) wang pain long chain ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((banking case) or (planning chain)) ((china yang) OR (china ying)) wang pain long chain ;*.