Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, minh trang, tinh trang
hanh trinh » hanh chinh
tong cong » trong cong, cong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cua tong » cua cong, cua dong, cua nong
cong nam » dong nam, uong nam, thong nam
nam toan » nam tan, tam toan, nam thanh
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 trang) or (canh tranh))) or (hanh trinh)) cua tong cong nam toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((((hanh trang) OR (canh tranh))) OR (hanh trinh)) cua tong cong nam toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((((hanh trang) or (canh tranh))) or (hanh trinh)) cua tong cong nam toan cao*.