Perhaps you should try some spelling variations:
day thanh » dao thanh, dat thanh, da thanh
tang van » dang van, hoang van, trong van
thanh vi » hanh vi, thanh va, thanh ve
thuc day » thuc dan, thuc vat
nam thuc » nam thuoc, am thuc, nam thu
vu sach » vu bach, su sach, vu khach
lang xa » lang ha, dang xay, lang van
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
va nam » van nam, ha nam, va nay
vi cua » vai cua, di cua

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

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