Perhaps you should try some spelling variations:
ve triet » va trien
su triet » su viet, su tien
nay thuc » nam thuc, cay thuc, day thuc
va thanh » gia thanh, ban thanh, va tinh
sach lo » sach dao, sach doi, sach hoi
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va danh, ban hanh
lo nang » ho nang, ly nang, loai nang
va nay » va ngay, va cay
x hoi » xa hoi, o hoi, x ho

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 lo nang x hoi. lieu va nay thuc ((va hanh) or (va thanh)) di ((su triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach lo nang x hoi. lieu va nay thuc ((va hanh) OR (va thanh)) di ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach lo nang x hoi. lieu va nay thuc ((va hanh) or (va thanh)) di ((su triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach lo nang x hoi. lieu va nay thuc ((va hanh) or (va thanh)) di ((su triet) OR (ve triet))*.