Perhaps you should try some spelling variations:
china chen » china shen, china china, china chang
chen huang » chen shuang, chen huigang, chen yugang
huang ting » huang jing, huang ying, huang bin
ting feng » ting peng, ting ping, ting ting
yan guan » gan guan, yan yuan, yang guang
feng fei » meng fei, wang fei, feng hui
yan can » yan clan, man can, yan wang

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

• Performing a fuzzy search may retrieve terms with similar spellings: nan ((((yan can) OR (yan guan))) or (yan cong)) china chen huang ting feng fei ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nan ((((yan can) OR (yan guan))) OR (yan cong)) china chen huang ting feng fei ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nan ((((yan can) OR (yan guan))) or (yan cong)) china chen huang ting feng fei ;*".