Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
hien hanh » dieu hanh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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 xanh) or (hien hanh)) - thanh trung ((cua dung) OR (cua dong)) cong dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hien hanh)) - thanh trung ((cua dung) OR (cua dong)) cong dan phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (hien hanh)) - thanh trung ((cua dung) OR (cua dong)) cong dan phan dau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (hien hanh)) - thanh trung ((cua dung) OR (cua dong)) cong dan phan dau*.