Perhaps you should try some spelling variations:
lean thinking » re thinking, new thinking
thinking firm » thinking form, thinking from, thinking circa
yan liang » yang liang, wang liang, you liang
kann eine » kann ein, dann einen, kann die
liang li » ling li, qiang li, liang wei
song jin » song min, shang jin, song shin
wan yan » wang yan, nan yan, wai yan
li lean » ii lean, li lan, mit lean

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 lean thinking firm ((kann eine) or (song jin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan liang li lean thinking firm ((kann eine) OR (song jin)) ;*.