Perhaps you should try some spelling variations:
chen zheng » chen zhen, chen aizheng, cheng zhang
hat zhang » hao zhang, yan zhang
bai chong » lai chung, wai chung, hai phong
wann hat » dann hat, want what, wann ist
zhang yi » zhang yin, zhang i, zhang ii
hai cong » pham cong, hai phong, yan cong
yi chen » jui chen

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

• Performing a fuzzy search may retrieve terms with similar spellings: wann hat zhang yi chen zheng ((hai cong) or (bai chong)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wann hat zhang yi chen zheng ((hai cong) OR (bai chong)) shu ;*.