Perhaps you should try some spelling variations:
yiqian wang » yijiang wang, liqin wang
qian wang » qian rong, qian yan, yan wang
tao yang » tan yang, xiao yang, dan yang
yao yang » yang yang
liu gang » liu gangs, liu yang, li gang
gang hai » dang hai, shang hai, eang hay
jing ji » ying jin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((qian wang) OR (yiqian wang)) jing ji ((du yang) or (((tao yang) or (yao yang)))) liu gang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((qian wang) OR (yiqian wang)) jing ji ((du yang) OR (((tao yang) OR (yao yang)))) liu gang hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((qian wang) OR (yiqian wang)) jing ji ((du yang) or (((tao yang) or (yao yang)))) liu gang hai ;*".