Perhaps you should try some spelling variations:
china hand » china land, china brand, china chang
huang yang » huang ying, huang chang, yang yang
yan wuhan » yan guan, yan yuan
china han » china has, china chang, china zhang
wang yang » wang yan, wang liang, wang yanling
qian yan » qian jun, qian yi
tong hui » wang hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian yan wuhan ((china han) OR (china hand)) ((wang yang) or (huang yang)) tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian yan wuhan ((china han) OR (china hand)) ((wang yang) OR (huang yang)) tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian yan wuhan ((china han) OR (china hand)) ((wang yang) or (huang yang)) tong hui ;*".