Perhaps you should try some spelling variations:
nhung trung » chuong trung, dung trung, nhung dung
tieu sach » chieu sach, dien sach, te sach
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
trung dai » truong dai, truong dao, trung tam
manh cua » doanh cua, ban cua
chan cau » can cau, chinh cau, nhanh 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 - canh manh cua nhung trung dai ((chan cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - canh manh cua nhung trung dai ((chan cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - canh manh cua nhung trung dai ((chan cau) or (phan cau))*.