Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
frans van » hans van
van hoang » tran hoang, vu hoang, anh hoang
hoang shu » hoang vu, cong shu, hoang sy
wang qin » wang lin, wang qiao, wang jing
li frans » bi trans, i frais, i franz
wan yan » wang yan, nan yan, wai yan

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan ((wang qin) or (yang liang)) li frans van hoang shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan ((wang qin) OR (yang liang)) li frans van hoang shu ;*.