Perhaps you should try some spelling variations:
tay trung » tai trung, tao trung, tay nung
toc sach » hoc sach, doc sach, thuoc sach
ban hanh » ban hang
cac cuc » cac cuoc, cac cua, cac nuoc
cuc ban » cua ban, cac ban, cuu ban
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: ((te sach) OR (toc sach)) ((tay trung) or (ky nang)) xa hoi. lieu va cac cuc ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ((tay trung) OR (ky nang)) xa hoi. lieu va cac cuc ban hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ((tay trung) or (ky nang)) xa hoi. lieu va cac cuc ban hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ((tay trung) or (ky nang)) xa hoi. lieu va cac cuc ban hanh vi cua tre*.