Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
tam thong » tam thuong, tao thong, nam thong
ban thanh » ban hanh, ban hang
chu sach » cau sach, thu sach, chuc hach
ban than » van thanh, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sach) or (chieu sach)) - thanh trung tam thong cong ((ban than) OR (ban thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sach) OR (chieu sach)) - thanh trung tam thong cong ((ban than) OR (ban thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sach) or (chieu sach)) - thanh trung tam thong cong ((ban than) OR (ban thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu sach) or (chieu sach)) - thanh trung tam thong cong ((ban than) OR (ban thanh)) cau*.