Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
tan thanh » tran thanh, tang thanh, toan thanh
cong tan » cong tac, cong san, cong thanh
thanh ca » thanh cha, thanh cac, thanh ha
chuc » thuc, chu, chua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chuc nang)) - hanh trinh quan dung cong tan thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chuc nang)) - hanh trinh quan dung cong tan thanh ca.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chuc nang)) - hanh trinh quan dung cong tan thanh ca*.