Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hung thanh » nhung thanh, phung thanh, hung thang
thong cong » trong cong, thong thong, phong chong
manh hung » anh huong
tong cong » trong cong, cong cong, dung cong
ban hanh » ban hang
can ban » van ban, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sach - manh hung thanh ((thong cong) OR (tong cong)) van ((ban hanh) or (can ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - manh hung thanh ((thong cong) OR (tong cong)) van ((ban hanh) OR (can ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - manh hung thanh ((thong cong) OR (tong cong)) van ((ban hanh) or (can ban))".
• Adding a wildcard symbol may retrieve word variants: toc thieu sach - manh hung thanh ((thong cong) OR (tong cong)) van ((ban hanh) or (can ban))*.