Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
day thanh » dao thanh, dat thanh, da thanh
toc sach » hoc sach, doc sach, nuoc sach
thuc day » thuc dan, thuc vat
thanh do » thanh de, thanh pho, thanh hoa
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
do cua » doi cua, co cua, de cua
va am » va lam, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (thuoc sach)) ky nang xa hoi. lieu va am thuc day thanh do cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thuoc sach)) ky nang xa hoi. lieu va am thuc day thanh do cua tre.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thuoc sach)) ky nang xa hoi. lieu va am thuc day thanh do cua tre*.