Perhaps you should try some spelling variations:
zhang yang » zhang yan, zhang fang, zhang ying
long thanh » luong thanh, long han, long trinh
yang yi » yang di, yang xi, yang jui
hui ren » hai ren, hua ren
gang li » gan li, tang li, liang li
wang li » wang lei, wang lin, tang li
yang li » yang lin, yang di, yang xi
yi hui » li hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: zhang yang yi hui ren ((((gang li) or (wang li))) or (yang li)) long thanh ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhang yang yi hui ren ((((gang li) OR (wang li))) OR (yang li)) long thanh ;*.