Perhaps you should try some spelling variations:
phong cong » phong chong, thong cong, chong cong
van phong » van dong, hai phong
tan nhanh » tai nhanh, tan nhan, tan thanh
nhanh bac » nhanh ha, nhanh va
hoc tieu » hoc thieu, hoc dieu, hoc sieu
thanh ta » thanh tra, thanh tai, thanh tay
cong tan » cong tac, cong san, cong thanh
ta van » tan van, tap van, va van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc tieu) or (toc thieu)) tinh - thanh ta van phong cong tan nhanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc tieu) OR (toc thieu)) tinh - thanh ta van phong cong tan nhanh bac.
• Adding a wildcard symbol may retrieve word variants: ((hoc tieu) or (toc thieu)) tinh - thanh ta van phong cong tan nhanh bac*.