Perhaps you should try some spelling variations:
yanling jan » mendling jan
genre can » genre dans, genome can, genre a
gene can » genes can, genome can, gene bank
only sur » only zur, only sort, only see
a gene » a genre, a gender, a gentle
jan a » jane a, can a, jan m
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yanling jan a gene ((gene can) or (genre can)) only sur ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yanling jan a gene ((gene can) OR (genre can)) only sur ;.
• Adding a wildcard symbol may retrieve word variants: wang yanling jan a gene ((gene can) or (genre can)) only sur ;*.