Perhaps you should try some spelling variations:
nang tai » hang tai, tang tai, sang tai
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
so sach » so sanh, bo sach, co sach
tai hoa » tai khoa, thai hoa, thi hoa
luc van » luoc van, luu van, duc van
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ve cau » va cau, ve cac, le cau
ke cau » ket cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach v nang tai hoa. hieu ((ve cau) OR (ke cau)) luc van hanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach v nang tai hoa. hieu ((ve cau) OR (ke cau)) luc van hanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach v nang tai hoa. hieu ((ve cau) OR (ke cau)) luc van hanh dai cua tre*.