Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
trinh va » trinh van, trinh vat, trinh ve
san toan » van toan, dan toan, xuan toan
va dung » van dung, va duong, vat dung

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu tinh)) - hanh trinh va dung cong ((san toan) OR (manh toan)) ban~.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu tinh)) - hanh trinh va dung cong ((san toan) or (manh toan)) ban*.