Perhaps you should try some spelling variations:
nhanh thai » nhanh thi, nhanh thanh, nhanh thang
hieu vien » hieu hien, hieu viec, thieu nien
hanh thai » hinh thai, hanh tai, anh thai
nang doc » nang luc
bach xuc » bach tuoc, bach xuan, bach hue
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
doc hoi » duoc hoi, hoc hoi, doc hai
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang doc hoi. hieu vien bach xuc van ((hanh thai) or (nhanh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang doc hoi. hieu vien bach xuc van ((hanh thai) OR (nhanh thai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang doc hoi. hieu vien bach xuc van ((hanh thai) or (nhanh thai)) cua tre*.