Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cau tren » cu tren, dau tren, ca tren
nang co » nang cao, nang doc, nang noi
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach tu, sach thu
va dinh » van dinh, va kinh, va tinh
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau treo
va danh » va dan, va hanh, dia danh
co hoi » co hoc, co loi

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 ty nang co hoi. hieu qua cac xuc ((va danh) OR (va dinh)) cho ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang co hoi. hieu qua cac xuc ((va danh) OR (va dinh)) cho ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang co hoi. hieu qua cac xuc ((va danh) OR (va dinh)) cho ((cuu tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang co hoi. hieu qua cac xuc ((va danh) OR (va dinh)) cho ((cuu tre) or (cau tren))*.