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

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) or (hieu ve)) cham vao va hanh vai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang co hoi. ((hieu vu) OR (hieu ve)) cham vao va hanh vai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang co hoi. ((hieu vu) or (hieu ve)) cham vao va hanh vai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang co hoi. ((hieu vu) or (hieu ve)) cham vao va hanh vai ((cua tre) OR (cua triet))*.