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

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 tinh toan 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 tinh toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh trung) or (canh tranh)) ba cong cong tinh toan ban*.