Perhaps you should try some spelling variations:
guifang yang » cuifen yang, huang yang
chen guifang » chen huigang, chen kairang, chen yugang
chang hui » chuang hui, chang jui, zhang hui
chang gui » chang jui, chang su, chang yun
yan guan » gan guan, yan yuan, yang guang
jui chen » yi chen
yan tan » tan tan, yan clan, 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: qian ((yan tan) or (yan guan)) jui chen guifang yang ((chang hui) OR (chang gui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian ((yan tan) OR (yan guan)) jui chen guifang yang ((chang hui) OR (chang gui)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian ((yan tan) or (yan guan)) jui chen guifang yang ((chang hui) OR (chang gui)) ;*".