Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach phu » sach thu, sach phat, sach thue
dinh lai » dinh lam, dinh lap, dinh tai
lam thuc » lam thuoc, am thuc, nam thuc
cay phoi » cap phoi, tay hoi, cay cho
phu dang » phu dong, phu lang, thu dang
xay hoi » tay hoi, gay thoi, may thoi
qua lam » cua lam, qua la, qua lao
thuc va » thuc vat, thuc dan, thuc day
va dinh » van dinh, va kinh, va tinh
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet

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 phu dang ((((xay hoi) OR (xa hoi))) or (cay phoi)). hieu qua lam thuc va dinh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach phu dang ((((xay hoi) OR (xa hoi))) OR (cay phoi)). hieu qua lam thuc va dinh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach phu dang ((((xay hoi) OR (xa hoi))) or (cay phoi)). hieu qua lam thuc va dinh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach phu dang ((((xay hoi) OR (xa hoi))) or (cay phoi)). hieu qua lam thuc va dinh lai cua tre*.