Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
cuc ban » cua ban, cac ban, cuu ban
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
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 thi nang xa hoi. lieu va cam ((cuc ban) or (cuu van)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thi nang xa hoi. lieu va cam ((cuc ban) OR (cuu van)) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach thi nang xa hoi. lieu va cam ((cuc ban) or (cuu van)) hanh vi cua tre*.