Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, pham thuc, tam thuc
thu sach » tu sach, thuat sach, thuoc sach
va thanh » ban thanh, va tinh, le thanh
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
va tham » van tham, va cham, va thuat
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ma hoa. lieu va tham thuc ((va thanh) OR (gia thanh)) vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang ma hoa. lieu va tham thuc ((va thanh) OR (gia thanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ma hoa. lieu va tham thuc ((va thanh) OR (gia thanh)) vi cua triet*.