Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
tham xuc » tham nuoc, tham thuc, pham duc
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
va danh » va dinh, va hanh, dia danh
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dao, va dau

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 y nang x ho. hieu va tham xuc ((va danh) OR (va dan)) vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach y nang x ho. hieu va tham xuc ((va danh) OR (va dan)) vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach y nang x ho. hieu va tham xuc ((va danh) OR (va dan)) vi ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: toc sach y nang x ho. hieu va tham xuc ((va danh) OR (va dan)) vi ((cua tre) or (cua triet))*.