Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong toan » cong tan, cong hoan, cong doan
cong tuan » cong tan, cong luan, cong thanh
chi sach » chinh sach, chieu sach, co sach
tam hung » tam huong, cam hung, tai hung
doi chi » doi khi
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - thanh trung tam hung ((cong toan) or (cong tuan)) can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh trung tam hung ((cong toan) OR (cong tuan)) can cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh trung tam hung ((cong toan) or (cong tuan)) can cau*.