Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
sach ty » sach y, sach tu, sach thu
hanh va » hang va, hanh vi
xuc ban » duc ban, cuc ban, quoc ban
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam
anh vi » hanh vi, anh va, anh ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ty nang x ho. hieu ((ve cam) or (va cac)) xuc ban ((anh vi) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ty nang x ho. hieu ((ve cam) OR (va cac)) xuc ban ((anh vi) OR (hanh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach ty nang x ho. hieu ((ve cam) or (va cac)) xuc ban ((anh vi) or (hanh va)) cuu tre*.