Perhaps you should try some spelling variations:
chen yulan » chen yugang, chen yulu
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
tin hong » tan hong, kia hong, thi hong
bin hong » min hong, amin hong, bin zhang
chen yun » chen yu, chen yue, chen yiqun
li yi » lin yi, li li, lu yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (wang yang)) li yi ((chen yulan) OR (chen yun)) ((bin hong) or (tin hong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) li yi ((chen yulan) OR (chen yun)) ((bin hong) OR (tin hong)) shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (wang yang)) li yi ((chen yulan) OR (chen yun)) ((bin hong) or (tin hong)) shu ;".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yang)) li yi ((chen yulan) OR (chen yun)) ((bin hong) or (tin hong)) shu ;*.