Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
cong thanh » dong thanh, cong trinh, cong tan
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
ba cong » ban cong, bia cong, bat cong
san ban » sang ban, van ban, can ban

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 trung) or (canh tranh)) ba cong cong thanh san ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh trung) OR (canh tranh)) ba cong cong thanh san ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trung) or (canh tranh)) ba cong cong thanh san ban*.