Perhaps you should try some spelling variations:
day thanh » dao thanh, dat thanh, da thanh
thai cua » than cua, tai cuc, tri cua
nang tao » nang cao, sang tao, nang tai
tao khoi » tao hoi, thao khoa, lao khoa
thuc day » thuc dan, thuc vat
lai cua » dai cua, hai cua, lai chau
bo sach » co sach, hoc sach
sach v » sach va, sach y, sach 2
va cam » va cham, va cao, va cai
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach v nang tao khoi. hieu ((va cam) OR (va cac)) thuc day thanh ((lai cua) or (thai cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach v nang tao khoi. hieu ((va cam) OR (va cac)) thuc day thanh ((lai cua) OR (thai cua)) viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach v nang tao khoi. hieu ((va cam) OR (va cac)) thuc day thanh ((lai cua) or (thai cua)) viet*".