Perhaps you should try some spelling variations:
lean thinking » re thinking, new thinking
can thinking » case thinking, a thinking, cco thinking
yan qian » yan liang, jun qian, yan clan
kann ein » kann eine, kann die, kann man
song jin » song min, shang jin, song shin
wan yan » wang yan, nan yan, wai yan
qian yi » qian yan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan qian yi ((can thinking) OR (lean thinking)) from ((kann ein) or (song jin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan qian yi ((can thinking) OR (lean thinking)) from ((kann ein) OR (song jin)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan qian yi ((can thinking) OR (lean thinking)) from ((kann ein) or (song jin)) ;*".