Perhaps you should try some spelling variations:
thinh sach » chinh sach, tinh sach, sinh sach
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
hang cong » dang cong, hang nong, bang cong
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
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) OR (hanh trinh)) cua hang cong dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tien thinh sach - ((hanh tranh) OR (hanh trinh)) cua hang cong dan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tien thinh sach - ((hanh tranh) OR (hanh trinh)) cua hang cong dan ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: tien thinh sach - ((hanh tranh) OR (hanh trinh)) cua hang cong dan ((toan cao) or (toan tap))*.