Perhaps you should try some spelling variations:
china nancy » china finance, china france
sang minh » kang minah, anh minh, song min
hua chen » jui chen, a chen, hua ren
yu cheng » _ cheng
nancy c » nancy n, nancy l
yu chen » yi chen, yulu chen, jui chen
yang xi » yang di, yang yi, yang jui

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

• Performing a fuzzy search may retrieve terms with similar spellings: china nancy c ((hua chen) or (((yu chen) OR (yu cheng)))) ((sang minh) or (yang xi)) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: china nancy c ((hua chen) OR (((yu chen) OR (yu cheng)))) ((sang minh) OR (yang xi)) cong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "china nancy c ((hua chen) or (((yu chen) OR (yu cheng)))) ((sang minh) or (yang xi)) cong shu ;".
• Adding a wildcard symbol may retrieve word variants: china nancy c ((hua chen) or (((yu chen) OR (yu cheng)))) ((sang minh) or (yang xi)) cong shu ;*.