Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
thang ban » hang ban, tang ban, thanh ban
ho chiet » ho chieu, hoc thiet, hoa thiet
ho thiet » hoc thiet, hoa thiet, so thiet
cua dong » chua dong, cua cong, cua dang
ha dong » hoat dong, van dong
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) OR (ho thiet)) tach - canh tranh ((ha dong) or (cua dong)) cang thang ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (ho thiet)) tach - canh tranh ((ha dong) OR (cua dong)) cang thang ban cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chiet) OR (ho thiet)) tach - canh tranh ((ha dong) or (cua dong)) cang thang ban cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) OR (ho thiet)) tach - canh tranh ((ha dong) or (cua dong)) cang thang ban cau*.