Perhaps you should try some spelling variations:
case thinking » cycle thinking, re thinking, a thinking
thinking four » thinking form, thinking about, thinking aloud
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
bonn mein » bonn ein
yang his » yang chik, yang di, yang xi
his case » aids case, egs case

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yang his case thinking four ((bonn mein) or (song (shin or sein))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang his case thinking four ((bonn mein) OR (song (shin OR sein))) ;*.