Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tung tuan » trung tuan, quang tuan, trang tuan
hung tuan » hung tran, quang tuan, trung tuan
cong toan » cong tan, cong tuan, cong doan
cong hoan » cong hoa, dong hoa, cong san

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 ((tung tuan) OR (hung tuan)) nhung ((cong toan) or (cong hoan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tung tuan) OR (hung tuan)) nhung ((cong toan) OR (cong hoan)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((tung tuan) OR (hung tuan)) nhung ((cong toan) or (cong hoan)) van ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((tung tuan) OR (hung tuan)) nhung ((cong toan) or (cong hoan)) van ban*.