Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lam thuc » lam thuoc, nam thuc, lam thue
dam thuc » dan thuc, nam thuc, dai thuc
danh vai » danh sai, danh va, doanh van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
co hoi » co hoc, co loi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang co hoi. hieu va ((((lam thuc) OR (dam thuc))) OR (am thuc)) va danh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang co hoi. hieu va ((((lam thuc) OR (dam thuc))) or (am thuc)) va danh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang co hoi. hieu va ((((lam thuc) OR (dam thuc))) or (am thuc)) va danh vai cua triet*.