Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
thanh cau » thanh chau, thanh mau, nhanh cau
dung cua » dung luan, dung cho
cong ban » cong bang, cong san, cong dan
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh ((dung cua) or (trung tuan)) nhung ((cong ban) OR (cong tan)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((dung cua) OR (trung tuan)) nhung ((cong ban) OR (cong tan)) thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((dung cua) or (trung tuan)) nhung ((cong ban) OR (cong tan)) thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((dung cua) or (trung tuan)) nhung ((cong ban) OR (cong tan)) thanh cau*.