Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu sach » chieu sach, dien sach, te sach
mang cua » manh cua, dung cua, cong cua
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - hanh ((mang cua) or (ban cua)) thong cong dan ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - hanh ((mang cua) OR (ban cua)) thong cong dan ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh ((mang cua) or (ban cua)) thong cong dan ((than cau) or (phan dau))*.