Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, hoc hien, hoc dieu
dai khung » dai khong, dam khung, dai khoang
ho chieu » theo chieu, hoc thieu, doi chieu
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: ((hoc chieu) OR (ho chieu)) xanh - hanh trinh ((dai khung) or (dap ung)) cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) xanh - hanh trinh ((dai khung) OR (dap ung)) cong tac toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (ho chieu)) xanh - hanh trinh ((dai khung) or (dap ung)) cong tac toan ban*".