Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » thong cong, hang cong, nhung don
tieu hanh » dieu hanh, tiem hanh, tien hanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
than cau » phan cau, than cap, thanh chau
toan cau » 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 hanh - hanh tranh cua ((nhung cong) or (dung cong)) dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu hanh - hanh tranh cua ((nhung cong) OR (dung cong)) dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: theo tieu hanh - hanh tranh cua ((nhung cong) or (dung cong)) dan ((than cau) or (toan cau))*.