Perhaps you should try some spelling variations:
thinking four » thinking form, thinking about, thinking aloud
yan liang » yang liang, wang liang, you liang
song skin » song shin, song jin, song min
mit lean » mit lacan, ii lean, mr lean
kann ein » kann eine, kann die, kann man
li lean » ii lean, li lan
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 liang ((li lean) OR (mit lean)) thinking four ((kann ein) OR (song skin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yan liang ((li lean) OR (mit lean)) thinking four ((kann ein) or (song skin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yan liang ((li lean) OR (mit lean)) thinking four ((kann ein) or (song skin)) ;*.