Perhaps you should try some spelling variations:
thinh sach » chinh sach, tinh sach, sinh sach
hanh tranh » canh tranh, hanh trinh, hanh trang
hang huong » hang thuong, hang luong, hoang phuong
tranh cua » doanh cua, manh cua
cua hang » cua dang, cua nhung, cua cong
toan cao » toan ban
toan tap » toan ban
tien » tieng, bien, vien

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

• Performing a fuzzy search may retrieve terms with similar spellings: tien thinh sach - hanh tranh cua hang huong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien thinh sach - hanh tranh cua hang huong dan ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: tien thinh sach - hanh tranh cua hang huong dan ((toan cao) or (toan tap))*.