Perhaps you should try some spelling variations:
lean thinking » re thinking, new thinking
thinking four » thinking form, thinking about, thinking aloud
yan qiang » yan liang, yang liang, dan qing
qiang li » liang li, qiang niu, ling li
bonn ein » bonn mein, bonn die, kann ein
li lean » ii lean, li lan, mit lean
wang » wing, wan, lang

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 yan qiang li lean thinking four ((bonn ein) OR (song (shin OR skin))) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan qiang li lean thinking four ((bonn ein) or (song (shin or skin))) ;*.