Perhaps you should try some spelling variations:
thinking firm » thinking form, thinking from, thinking circa
yan liang » yang liang, wang liang, you liang
song skin » song shin, song jin, song min
kann ein » kann eine, kann die, kann man
wan yan » wang yan, nan yan, wai yan
ali a » mali a, ali al, all a
li a » lit a, lie a, cli a

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 liang ((li a) OR (ali a)) thinking firm ((kann ein) or (song skin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan liang ((li a) OR (ali a)) thinking firm ((kann ein) OR (song skin)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan liang ((li a) OR (ali a)) thinking firm ((kann ein) or (song skin)) ;*".