Perhaps you should try some spelling variations:
anhang dr » anhang der, anhang d, anhang die
kong john » king john, longo john, wrong john
wong john » wrong john, longo john, young john
dong bin » dong sin, dong di, dann bin
dr l » dr h, dr e, dr a
lang » land, long
einem » eine, einer, eines

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: lang einem anhang dr l ((kong john) OR (wong john)) ((cong shu) OR (dong bin)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang einem anhang dr l ((kong john) or (wong john)) ((cong shu) or (dong bin)) ;*.