Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
trang doan » trong doanh, trang tuan, quang doan
thong cong » trong cong, tong cong, thong thong
tran doan » tan doan, tran hoan, toan doanh
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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 (chieu tinh)) - hanh ((trang doan) or (tran doan)) thong cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - hanh ((trang doan) OR (tran doan)) thong cong ban than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu tinh)) - hanh ((trang doan) or (tran doan)) thong cong ban than cau*".