Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh hinh » hanh chinh, hanh tinh, hanh dinh
cua khong » hua khong, cua phuong, cua thuong
hinh cua » chinh cua, sinh cua, tinh cua
van toan » van tuan, van tan, van thanh

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 - hanh hinh cua khong cong ((van toan) or (anh tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh hinh cua khong cong ((van toan) OR (anh tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh hinh cua khong cong ((van toan) or (anh tuan)) cao*.