Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
yuhan tin » yuan ting
hoang ya » hoang vu, hong yu, hoang _
hoang sy » hoang vu
hua wang » yuan wang
hong ghi » hong hai
hong g » hong w
dong » doing, long, done
hai » hadi, hair, haji

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((hoang ya) or (hoang sy)) hua wang yuhan tin ((((hong g) OR (hong ghi))) or (dang hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((hoang ya) OR (hoang sy)) hua wang yuhan tin ((((hong g) OR (hong ghi))) OR (dang hai)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((hoang ya) or (hoang sy)) hua wang yuhan tin ((((hong g) OR (hong ghi))) or (dang hai)) ;*".