Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cham lao » chai lao, cham lai, cham vao
hanh vai » hanh vi, hanh va, hanh tai
nang co » nang cao, nang doc, nang noi
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
lao va » tao va, cao va, bao va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang co hoi. hieu vu cham lao va hanh vai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang co hoi. hieu vu cham lao va hanh vai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang co hoi. hieu vu cham lao va hanh vai ((cua tre) OR (cua te))*.