Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
dai dang » da dang, hai dang, dai duong
dai nang » da nang, dai thang, ki nang
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: theo chieu xanh - hanh trung ((dai dang) OR (dai nang)) cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - hanh trung ((dai dang) OR (dai nang)) cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh trung ((dai dang) OR (dai nang)) cong tac toan ban*.