Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
vong tuan » vuong tuan, cong tuan, hoang tuan
tuan cau » toan cau, quan cau, tuan cu

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 cua ((dang cong) OR (dung cong)) vong tuan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - hanh trinh cua ((dang cong) OR (dung cong)) vong tuan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh cua ((dang cong) OR (dung cong)) vong tuan cau*.