Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nam thuc » nam thuoc, am thuc, nam thu
va triet » va thiet, va trien, ve triet
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
cam tuc » cam xuc, cam tu, dam thuc
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
di va » dai va, di vao, doi va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty xang xa hoi. lieu va ((cam tuc) OR (nam thuc)) va hanh di va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty xang xa hoi. lieu va ((cam tuc) OR (nam thuc)) va hanh di va triet".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty xang xa hoi. lieu va ((cam tuc) OR (nam thuc)) va hanh di va triet*.