Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, cua chung
chung cong » nhung cong, chong cong, phung cong
tieu danh » dieu danh, tiep danh, thien danh
cong tan » cong tac, cong san, cong thanh
tan khan » tan khang, tan nhan, toan khoan
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((tieu danh) or (chieu sach)) - hanh trinh luat chung cong tan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu danh) OR (chieu sach)) - hanh trinh luat chung cong tan khan cap.
• Adding a wildcard symbol may retrieve word variants: theo ((tieu danh) or (chieu sach)) - hanh trinh luat chung cong tan khan cap*.