Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chau tinh » cuu tinh, ha tinh, cua tinh
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: doi ((hieu manh) or (chau tinh)) - hanh trinh cua dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chau tinh)) - hanh trinh cua dung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chau tinh)) - hanh trinh cua dung cong tan toan cau*.