Perhaps you should try some spelling variations:
extending reform » spending reform, extensive reform, licensing reform
using extending » using bending, using extended, banking extending
reform hua » reform a, reform how, reform auf
yang jin » yang jie, yang jun, shang jin
ying jin » jing ji, yang jie
song so » song von

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: using extending reform hua (rent OR west) ((yang jin) OR (ying jin)) song so ;~.
• Adding a wildcard symbol may retrieve word variants: using extending reform hua (rent or west) ((yang jin) or (ying jin)) song so ;*.