Perhaps you should try some spelling variations:
start thinking » abstract thinking
thinking john » thinking can, thinking form, thinking four
yang zwang » yang yang, yang guang, yang liang
als start » ads start, goals start, als starke
yan wang » yuan wang, yang yang, qian wang
kann ein » kann eine, kann die, kann man

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 zwang) OR (yan wang)) als start thinking john ((kann ein) OR (song (shin OR sein))) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yang zwang) or (yan wang)) als start thinking john ((kann ein) or (song (shin OR sein))) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yang zwang) or (yan wang)) als start thinking john ((kann ein) or (song (shin OR sein))) ;*.