Perhaps you should try some spelling variations:
thinking four » thinking form, thinking about, thinking aloud
wang wang » wang yang, wang liang, wang yan
wang ling » wang liang, wang jing, wang ning
bonn ein » bonn mein, bonn die, kann ein
li lean » li lan, mit lean
ii lean » ii legal, mit lean
shin » skin, sein, thin

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 wang ling ((li lean) OR (ii lean)) thinking four ((bonn ein) OR (song shin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ling ((li lean) OR (ii lean)) thinking four ((bonn ein) or (song shin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang ling ((li lean) OR (ii lean)) thinking four ((bonn ein) or (song shin)) ;*.