Perhaps you should try some spelling variations:
thinking four » thinking form, thinking about, thinking aloud
lan thinking » lean thinking, can thinking, a thinking
zhang wei » zhen wei
kann ein » kann eine, kann die, kann man
wan yan » nan yan, wai yan, wang yang
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) OR (wang yan)) zhang wei lan thinking four ((kann ein) OR (song shin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) OR (wang yan)) zhang wei lan thinking four ((kann ein) or (song shin)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wan yan) OR (wang yan)) zhang wei lan thinking four ((kann ein) or (song shin)) ;*.