Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
cua thuong » cua truong, cua phuong, ca thuong
trang cua » tranh cua, tang cua, trung cua
dong tap » dong thap, tong tap, dong tam
dong tai » dung tai, luong tai, cong tac
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 ((dieu hanh) or (chieu xanh)) - hanh trang cua thuong ((dong tap) OR (dong tai)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu hanh) OR (chieu xanh)) - hanh trang cua thuong ((dong tap) OR (dong tai)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dieu hanh) or (chieu xanh)) - hanh trang cua thuong ((dong tap) OR (dong tai)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu hanh) or (chieu xanh)) - hanh trang cua thuong ((dong tap) OR (dong tai)) toan cao*.