Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
nhung cong » dung cong, thong cong, hang cong
theo hop » theo phap, thao hoc, theo ucp
hop manh » hop danh, ho manh, hop mang
cong tan » cong tac, cong san, cong thanh
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 hop manh - ((hanh trang) or (hanh trinh)) va nhung cong tan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hop manh - ((hanh trang) OR (hanh trinh)) va nhung cong tan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: theo hop manh - ((hanh trang) or (hanh trinh)) va nhung cong tan ((than cau) or (toan cau))*.