Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
nam thuc » nam thuoc, am thuc, nam thu
dinh tai » dinh toai, dinh tri, dinh thi
cuu tre » cua tre, cau tren
va dinh » van dinh, va kinh, va tinh
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, tu cach
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
ve nam » he nam, va nam, le nam

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) or (te sach)) y nang ma hoi. hieu ve nam thuc va dinh tai ((cuu tre) OR (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang ma hoi. hieu ve nam thuc va dinh tai ((cuu tre) OR (cau treo))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) y nang ma hoi. hieu ve nam thuc va dinh tai ((cuu tre) OR (cau treo))*".