Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
hanh tinh » hanh trinh, thanh tinh, canh tinh
thong cap » thong cac, trung cap, thong cua
chi sach » chinh sach, chieu sach, co sach
va thong » va thuong, va phuong, he thong
doi chi » doi khi
cap ban » cap bang, can ban, cac ban
ban cau » bang cau, ban can, van cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - ((hanh tinh) or (nhanh tinh)) va thong thong cap ban cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((hanh tinh) OR (nhanh tinh)) va thong thong cap ban cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((hanh tinh) or (nhanh tinh)) va thong thong cap ban cau*.