Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
qua cham » qua hai, qua cac, va cham
tu nong » tu dong, tu cong, tu tong
tu nano » truc nano
va dinh » van dinh, va tinh, vu dinh
va kinh » va tinh, qua kinh
tu sach » thu sach, su sach, te sach
x hoi » xa hoi, o hoi, x ho
su va » su van, tu va

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 ((tu nano) or (tu nong)) x hoi. hieu qua cham tuc ((va dinh) or (va kinh)) su va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu nano) OR (tu nong)) x hoi. hieu qua cham tuc ((va dinh) OR (va kinh)) su va triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu nano) or (tu nong)) x hoi. hieu qua cham tuc ((va dinh) or (va kinh)) su va triet*.