Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » thong cong, hang cong, nhung don
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
than ban » thanh ban, than man, nhuan ban
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh tranh va ((nhung cong) OR (dung cong)) dan ((than ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh tranh va ((nhung cong) OR (dung cong)) dan ((than ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh tranh va ((nhung cong) OR (dung cong)) dan ((than ban) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh tranh va ((nhung cong) OR (dung cong)) dan ((than ban) or (toan ban))*.