Perhaps you should try some spelling variations:
thinking form » thinking firm, thinking from, thinking before
thinking four » thinking about, thinking aloud, thinking from
yan zhang » yuan chang, bin zhang, han chang
zhang wei » zhen wei
kann ein » kann eine, kann die, kann man
wan yan » wang yan, nan yan, wai yan
wei lan » wei lun, wei wang, wei yang
shin » skin, sein, thin

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 yan zhang wei lan ((thinking four) OR (thinking form)) ((kann ein) OR (song shin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan zhang wei lan ((thinking four) OR (thinking form)) ((kann ein) or (song shin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan yan zhang wei lan ((thinking four) OR (thinking form)) ((kann ein) or (song shin)) ;*.