Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
luat nhung » luat thuong, thuat nhung, cua nhung
luat chung » luan chung, luat thuong, cua chung
doi chieu » doc hieu, doi chi, ho chieu
tran chau » tranh chap, tran huu
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh ((luat nhung) OR (luat chung)) cong tan tran chau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh ((luat nhung) OR (luat chung)) cong tan tran chau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh ((luat nhung) OR (luat chung)) cong tan tran chau*.