Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
cau thuc » cau truc, cuu thuc, can thuc
va thanh » gia thanh, ban thanh, va tinh
vuc nang » cuc nang, vu nang, chuc nang
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va danh, ban hanh
vu sach » vu bach, su sach, vu khach
qua cau » quan cau, qua cac, qua ca
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((v nang) or (vuc nang)) ma hoi. hieu qua cau thuc ((va hanh) OR (va thanh)) lai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((v nang) OR (vuc nang)) ma hoi. hieu qua cau thuc ((va hanh) OR (va thanh)) lai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((v nang) or (vuc nang)) ma hoi. hieu qua cau thuc ((va hanh) OR (va thanh)) lai cua viet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((v nang) or (vuc nang)) ma hoi. hieu qua cau thuc ((va hanh) OR (va thanh)) lai cua viet*.