Perhaps you should try some spelling variations:
chen yulan » chen yugang, chen yulu, chen yun
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
bin cong » bind congo, minh cong, yan cong
yi yi » yin yi, qi yi, yi ki
li yi » lin yi, lu yi, qi yi
li li » li lin, li l, li lu

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)) ((yi yi) or (((li yi) or (li li)))) chen yulan bin cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (wang yang)) ((yi yi) OR (((li yi) OR (li li)))) chen yulan bin cong shu ;.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (wang yang)) ((yi yi) or (((li yi) or (li li)))) chen yulan bin cong shu ;*.