Perhaps you should try some spelling variations:
chen yugang » chen huigang, chen yang, chen yulan
yugang ying » huang ying
yang guang » yang yang
yang liang » wang liang, yan liang, yang yang
ying chang » jin chang, yi chang, yin hang
chang jui » chang gui, yang jui, chang su
yan guan » gan guan, yan yuan, yihan guan
yu chen » yu cheng, yi chen, yulu chen

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 guan) OR (yang guang))) or (yang liang)) yu chen yugang ying chang jui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian ((((yan guan) OR (yang guang))) OR (yang liang)) yu chen yugang ying chang jui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian ((((yan guan) OR (yang guang))) or (yang liang)) yu chen yugang ying chang jui ;*".