Perhaps you should try some spelling variations:
lean thinking » re thinking, new thinking
thinking form » thinking firm, thinking from, thinking four
yang liang » wang liang, yan liang, peng liang
yang yang » wang yang, wang yan
song skin » song shin, song jin, song min
bonn ein » bonn mein, bonn die, kann ein
ii lean » ii legal, mit lean

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 ((yang liang) OR (yang yang)) ii lean thinking form ((bonn ein) OR (song skin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((yang liang) OR (yang yang)) ii lean thinking form ((bonn ein) or (song skin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((yang liang) OR (yang yang)) ii lean thinking form ((bonn ein) or (song skin)) ;*.