Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, anh trinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tinh » hanh tinh, manh tinh, canh tranh
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu
va hang » van hang, va nang, va lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - ((canh trinh) OR (canh tinh)) va hang cong tan phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((canh trinh) OR (canh tinh)) va hang cong tan phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((canh trinh) OR (canh tinh)) va hang cong tan phan cau*.