Perhaps you should try some spelling variations:
thinking four » thinking form, thinking about, thinking aloud
wan yanling » wang yanling, wang yangming, wang danning
song thin » song shin, song jin, song min
als gast » als gabe, als gt
als last » a last, his last, its last
bonn ein » bonn mein, bonn die, kann ein

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 yanling zwang ((als gast) OR (als last)) thinking four ((bonn ein) OR (song thin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yanling zwang ((als gast) or (als last)) thinking four ((bonn ein) or (song thin)) ;*.