Perhaps you should try some spelling variations:
one parent » lone parents, one percent, one part
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
one gene » gene gene, one agent, e gene
die bank » die banken
yang a » yang ka, yang _, yang 8
a gene » a genre, a gender, a gentle

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 yang yang a gene ((((one gene) OR (one parent))) OR (die bank)) one abu ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang yang a gene ((((one gene) or (one parent))) or (die bank)) one abu ;*.