Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, truong thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap

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