Perhaps you should try some spelling variations:
thinking john » thinking can, thinking form, thinking four
song thin » song shin, song jin, song min
wan yang » wang yang, dan yang, tan yang
jing jia » jing ji, ping jia, ying jin
kann ein » kann eine, kann die, kann man
jing li » jing ji, ling li, liang li

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: wan yang ((jing li) OR (jing jia)) re thinking john ((kann ein) OR (song thin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yang ((jing li) OR (jing jia)) re thinking john ((kann ein) or (song thin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yang ((jing li) OR (jing jia)) re thinking john ((kann ein) or (song thin)) ;*.