Perhaps you should try some spelling variations:
tung pham » hung pham, nhung pham, trung phan
dang cong » dung cong
cong bang » cuong bang, dong bang, hong bang
bang hanh » bang thanh, ban hanh, bang hinh
doc hieu » toc thieu, hoc thieu, hoc hien
dung lam » dung luan, dung tai, dung dat
hanh lap » thanh lap, hanh lam, hanh cap
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) or (doc hieu)) sang - thanh ((tung pham) or (dung lam)) dang cong bang hanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (doc hieu)) sang - thanh ((tung pham) OR (dung lam)) dang cong bang hanh lap.
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (doc hieu)) sang - thanh ((tung pham) or (dung lam)) dang cong bang hanh lap*.