Perhaps you should try some spelling variations:
zhang fang » zhang fan, zhang zhang, zhang yan
them zhang » zhen zhang
know them » know when
fang hung » dang hung, fung hung, fang sheng
yan wang » yuan wang, yang yang, qian wang
hung seo » hong seo, hung ho
a know » a known, _ know, i know

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yuan fei)) a know them zhang fang hung seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yuan fei)) a know them zhang fang hung seo ;*.