Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
yan dang » yan wang, yang yang, yan liang
dang dam » dang pham, dang hai, sang dae
dam rein » dam region, am rhein, der rein
yang jui » yang di, yang yi
yan jiu » yang jie, yang jin, pang jiu
yang xi » yang di, yang yi

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan dang dam rein ((((yan jiu) or (yang judy))) or (((yang xi) or (yang jui)))) cong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan dang dam rein ((((yan jiu) OR (yang judy))) OR (((yang xi) OR (yang jui)))) cong shu ;.
• Adding a wildcard symbol may retrieve word variants: lang yan dang dam rein ((((yan jiu) or (yang judy))) or (((yang xi) or (yang jui)))) cong shu ;*.