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
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: hoc chieu tinh - hanh trinh ((cua dung) or (cua ban)) cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh trinh ((cua dung) OR (cua ban)) cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh trinh ((cua dung) or (cua ban)) cong dan toan cao*.