Perhaps you should try some spelling variations:
dung phuong » dung thuong, bang phuong, dung chung
dang quang » dung quang, dang hung
phuong dan » phuong danh, phuong doan, huong dan
nang quan » ban quan, nang suat
chi danh » chi dan, chi anh, chi dinh
dan toan » van toan, dan than, manh toan
toan ban » van ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi danh - nhanh ((dang quang) or (nang quan)) dung phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi danh - nhanh ((dang quang) OR (nang quan)) dung phuong dan toan ban*.