Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
nhung cong » dung cong, thong cong, hang cong
tieu sach » chieu sach, dien sach, te sach
cua nhung » va nhung
chinh cau » chinh chau, chinh ca, chinh can
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
chan cau » can cau, nhanh cau, toan cau
phan cau » phan dau, phan cac, phan tu

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 - nhanh mang cua nhung cong tan ((((chan cau) OR (chinh cau))) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - nhanh mang cua nhung cong tan ((((chan cau) OR (chinh cau))) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - nhanh mang cua nhung cong tan ((((chan cau) OR (chinh cau))) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - nhanh mang cua nhung cong tan ((((chan cau) OR (chinh cau))) or (phan cau))*.