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