Perhaps you should try some spelling variations:
reformen beim » reformen bei, reformen im, reformen teil
beim david » kim david
david mant » david ian, david ma, david malone
yuan wang » yuan kang, yuan chang, qian wang
zwang iii » zugang iii, klang iii
yan wang » yang yang, qian wang, yan liang
yang iii » klang iii, yang zili, yang di

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: ((yan wang) OR (yuan wang)) ((yang iii) OR (zwang iii)) reformen beim david mant (hai OR haji) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yuan wang)) ((yang iii) OR (zwang iii)) reformen beim david mant (hai or haji) ;~".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yuan wang)) ((yang iii) OR (zwang iii)) reformen beim david mant (hai or haji) ;*.