Perhaps you should try some spelling variations:
lean thinking » re thinking, new thinking
can thinking » case thinking, a thinking, cco thinking
der qing » der ring, der dinge, dan qing
bonn ein » bonn mein, bonn die, kann ein
song jin » song min, shang jin, song shin
wai der » mari der
qing li » qiang li, ling li, liang li

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

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