Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua trung » cua truong, xuan trung, cua nhung
cong tacg » cong tang, cong thang, cong tan
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
song van » hoang van, trong van, duong van
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 tranh cua trung ((((cong tac) or (cong tacg))) or (song van)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tranh cua trung ((((cong tac) OR (cong tacg))) OR (song van)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tranh cua trung ((((cong tac) or (cong tacg))) or (song van)) toan cao*.