Perhaps you should try some spelling variations:
nhanh cay » nhanh ha, nhanh bac, nhanh va
doc sach » hoc sach, toc sach, nuoc sach
va nhanh » va thanh, va hanh, va nhan
va cham » va chat, va tham
cay cua » ca cua, day cua, cay ca
ve cham » ve chat, vu cham, ve chim
sach ky » sac ky, sach y, sach ty
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach ky nang ((mai hoi) or (lai hoi)). hieu ((ve cham) OR (va cham)) tuc va nhanh cay cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach ky nang ((mai hoi) OR (lai hoi)). hieu ((ve cham) OR (va cham)) tuc va nhanh cay cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach ky nang ((mai hoi) or (lai hoi)). hieu ((ve cham) OR (va cham)) tuc va nhanh cay cua te".
• Adding a wildcard symbol may retrieve word variants: doc sach ky nang ((mai hoi) or (lai hoi)). hieu ((ve cham) OR (va cham)) tuc va nhanh cay cua te*.