Perhaps you should try some spelling variations:
nhanh thuc » nhan thuc, thanh thuy, anh thuc
hinh thai » sinh thai, tinh thai, dinh thi
toc sach » hoc sach, doc sach, thuoc sach
sach ky » sac ky, sach y, sach ty
nang ro » nang co, nang ho, nang ra
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
ro hai » co hai, o hai, so hai
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: toc sach ky nang ro hai. hieu va cam xuc van ((nhanh thuc) or (hinh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang ro hai. hieu va cam xuc van ((nhanh thuc) OR (hinh thai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang ro hai. hieu va cam xuc van ((nhanh thuc) or (hinh thai)) cua tre*.