Perhaps you should try some spelling variations:
start thinking » abstract thinking
thinking four » thinking form, thinking about, thinking aloud
yang qiang » yang liang, wang liang, yang yang
wang yang » wang yan, wang liang, wang yanling
qiang des » gang des, zwang des
des start » der start, des staats, ads start
bonn shin » bonn ein, bonn mein

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 yang qiang des start thinking four ((bonn shin) OR (song shin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yang qiang des start thinking four ((bonn shin) or (song shin)) ;*.