Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
sang tao » hang tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cac duc » cac du, cao duc, cac dac
hieu va » lieu va, hieu qua
hieu ve » hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
cuu tre » cua tre, cau tren, cau treo
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: tu sach ky sang tao hoi. ((hieu ve) OR (hieu va)) cac duc va thanh lam ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky sang tao hoi. ((hieu ve) OR (hieu va)) cac duc va thanh lam ((cua te) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang tao hoi. ((hieu ve) OR (hieu va)) cac duc va thanh lam ((cua te) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang tao hoi. ((hieu ve) OR (hieu va)) cac duc va thanh lam ((cua te) or (cuu tre))*.