Perhaps you should try some spelling variations:
lieu van » hieu van, sieu van, lieu nano
thuc day » thuc dan, thuc vat
day hanh » day nhanh, day thanh, dao hanh
su sach » so sach, vu sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
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: su sach ly nang ((x ho) or (xa hoi)). ((lieu va) or (lieu van)) am thuc day hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly nang ((x ho) OR (xa hoi)). ((lieu va) OR (lieu van)) am thuc day hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ly nang ((x ho) or (xa hoi)). ((lieu va) or (lieu van)) am thuc day hanh vi cua tre*.