Perhaps you should try some spelling variations:
doing hoang » dong hoang
xiao fang » xia fang, xiao yang, xiao zhang
fang yuan » wang yuhan, wang yan, meng yuan
yap xiao » ye xiao
yuan tin » yuan ting, yuan lin, yuan ming
hong g » hong ng, hong 7, hong a
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: doing hoang yap xiao fang yuan tin ((((hong g) OR (hong w))) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doing hoang yap xiao fang yuan tin ((((hong g) OR (hong w))) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doing hoang yap xiao fang yuan tin ((((hong g) OR (hong w))) or (dang hai)) ;*".