Perhaps you should try some spelling variations:
thanh dinh » thanh binh, thanh tinh, thanh vinh
dinh cuu » dinh chi
thuc day » thuc dan, thuc vat
so sach » so sanh, bo sach, co sach
sach ly » sach y, sach lo, sach ty
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
ly dung » ly dong, xay dung, ly khung
xuc va » duc va, tuc va, luc va
ha hoi » hoa hoi, xa hoi, va hoi
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ly dung ((ha hoi) OR (ha noi)). hieu va cam ((xuc va) or (thuc day)) thanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ly dung ((ha hoi) OR (ha noi)). hieu va cam ((xuc va) OR (thuc day)) thanh dinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ly dung ((ha hoi) OR (ha noi)). hieu va cam ((xuc va) or (thuc day)) thanh dinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: so sach ly dung ((ha hoi) OR (ha noi)). hieu va cam ((xuc va) or (thuc day)) thanh dinh cuu tre*.