Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
day dinh » dao dinh, day danh, dang dinh
dinh tai » dinh toai, dinh tri, dinh thi
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
cuc tre » duc tre, cua tre, cuu tre
y nang » ky nang, ly nang, v nang
ve nam » he nam, le nam, te nam
va nam » van nam, ha nam, va nay

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