Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tuan cap » than cap, thuan cam, toan cau
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh trinh cua ((dung cong) or (thong cong)) van ((tuan cap) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh cua ((dung cong) OR (thong cong)) van ((tuan cap) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh trinh cua ((dung cong) or (thong cong)) van ((tuan cap) OR (toan cao))*".