Perhaps you should try some spelling variations:
kann oder » kann der, kant oder, kann aber
gene gene » gene meme, gene one
wang nan » wang yan, wang ban, wang dan
one gene » one agent, e gene, one get
nan jan » nan yan, chan jan
can one » than one, can only
jan a » jane a, can a, jan m

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang nan jan a ((gene gene) OR (one gene)) ((can one) OR (kann oder)) saul ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang nan jan a ((gene gene) OR (one gene)) ((can one) or (kann oder)) saul ;~".
• Adding a wildcard symbol may retrieve word variants: wang nan jan a ((gene gene) OR (one gene)) ((can one) or (kann oder)) saul ;*.