Perhaps you should try some spelling variations:
pumping control » pacing control, using control, comparing control
chan pumping » a pumping, chan ming
wang qian » wang qiao, wang qin, wang liang
qian wang » yiqian wang, qian rong, qian yan
han shen » khan sher, can she, han men
han en » han men, van en, chan eng

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang qian wang ((han shen) or (han en)) chan pumping control zhi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang qian wang ((han shen) OR (han en)) chan pumping control zhi ;.
• Adding a wildcard symbol may retrieve word variants: wang qian wang ((han shen) or (han en)) chan pumping control zhi ;*.