Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
hanh trinh » canh tranh, hanh chinh
trinh van » trinh han, trinh quan, trinh toan
cac thuan » cac thuat, cay thuan, cac khoan
thuan cam » thuat cam, thuat dam, khoan cam
van dung » van dong, xay dung, tin dung

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) or (trieu tinh)) - hanh trinh van dung trong cac thuan cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (trieu tinh)) - hanh trinh van dung trong cac thuan cam.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (trieu tinh)) - hanh trinh van dung trong cac thuan cam*.