Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
huong tinh » thuong tinh, duong tinh, hung tinh
tung tuan » trung tuan, hung tuan, quang tuan
tuan dung » tuan duong, tran dung, tan dung

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