Perhaps you should try some spelling variations:
wang liang » wang yang
liang dan » liang tan, king dan, liang sun
zwang und » zugang und
one gene » gene gene, one agent, e gene
gene set » gene sets, game set, gene we
und tabu » und tabus, und tanz
see one » gene one, see more, see note
dan a » dan la, can a, das a

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang dan a ((((see one) or (one gene))) or (gene set)) zwang und tabu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang dan a ((((see one) OR (one gene))) OR (gene set)) zwang und tabu ;*.