Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
doc hieu » toc thieu, hoc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
va thong » va thuong, va phuong, he thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (((theo chu) or (ho chieu)))) xanh - hanh trinh va thong cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (((theo chu) OR (ho chieu)))) xanh - hanh trinh va thong cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (((theo chu) or (ho chieu)))) xanh - hanh trinh va thong cong tac toan ban*.