Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
va nhan » van nhan, ca nhan, va nha
tai cua » thai cua, tai cuc, tri cua
va phan » van phan, va phat, va phap
cam tuc » cam xuc, cam tu, nam thuc
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (hoc sach)) ky nang xa hoi. lieu va cam tuc ((va nhan) OR (va phan)) tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (hoc sach)) ky nang xa hoi. lieu va cam tuc ((va nhan) OR (va phan)) tai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (hoc sach)) ky nang xa hoi. lieu va cam tuc ((va nhan) OR (va phan)) tai cua tre*".