Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
toc sach » hoc sach, doc sach, thuoc sach
va chat » van chat, va phat, cao chat
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
di cuu » di cau, di cua, dinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (toc sach)) ky nang x ho. hieu va chat xuc ((va hanh) or (va danh)) di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) ky nang x ho. hieu va chat xuc ((va hanh) OR (va danh)) di cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) ky nang x ho. hieu va chat xuc ((va hanh) or (va danh)) di cuu tre*.