Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, tien anh
hanh mang » nhanh mang, hanh trang, nhanh lang
cua phong » cua phuong, cuu phong, chau phong
cua khong » hua khong, cua phuong, cua thuong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: theo ((tieu xanh) or (dieu hanh)) - hanh mang ((cua phong) OR (cua khong)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (dieu hanh)) - hanh mang ((cua phong) OR (cua khong)) cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) or (dieu hanh)) - hanh mang ((cua phong) OR (cua khong)) cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) or (dieu hanh)) - hanh mang ((cua phong) OR (cua khong)) cong dan toan cao*.