Perhaps you should try some spelling variations:
buying votes » buying power
test buying » test using, just buying, test building
votes doing » notes doing, voters during, others doing
wang jing » wang ning, wang liang, wang yang
bang dai » zhang dai
doing un » doing und, doing our, doing von
yang » lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang jing ((bang dai) or (yang di)) test buying votes doing un ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang jing ((bang dai) OR (yang di)) test buying votes doing un ;.
• Adding a wildcard symbol may retrieve word variants: wang jing ((bang dai) or (yang di)) test buying votes doing un ;*.