Perhaps you should try some spelling variations:
thinking four » thinking form, thinking about, thinking aloud
lan thinking » lean thinking, can thinking, a thinking
wang wang » wang yang, wang liang, wang yan
bonn mein » bonn ein
song thin » song shin, song jin, song min
qiang li » liang li, qiang niu, qian yi

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 wang ((qiang li) OR (ling li)) lan thinking four ((bonn mein) OR (song thin)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang ((qiang li) OR (ling li)) lan thinking four ((bonn mein) or (song thin)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang wang ((qiang li) OR (ling li)) lan thinking four ((bonn mein) or (song thin)) ;*.