Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
thanh cao » thanh ca, thanh thao, thanh cham
thanh cac » hanh cac, thanh bac, thanh ca
vat dung » van dung, viet dung, mat duong
cong tac » cong ty
va dung » van dung, va duong, va ung

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 chieu tinh - hanh trinh ((va dung) OR (vat dung)) cong tac ((thanh cao) OR (thanh cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh trinh ((va dung) OR (vat dung)) cong tac ((thanh cao) or (thanh cac))~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh trinh ((va dung) OR (vat dung)) cong tac ((thanh cao) or (thanh cac))*.