Perhaps you should try some spelling variations:
rent sharing » risk sharing, rent seeking, cost sharing
sharing mind » sharing mining, sharing gains, sharing links
yang guang » yang yang, yan guan, yang liang
yang gang » yang yang, eoyang gang, yang liang
der rent » der re, der rede
how some » how women
how so » how slow

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 gang) OR (yang guang)) der rent sharing mind ((how so) OR (how some)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yang gang) or (yang guang)) der rent sharing mind ((how so) or (how some)) ;*.