Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cham xuc » cam xuc, chat xuc, cham soc
sach thu » sach thue, sach thieu, sach tham
qua cham » qua hai, qua cac, va cham
lanh hai » manh hai, lang chai, lanh dao
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, xach tay
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) or (sach thu)) nang xa hoi. hieu qua cham xuc ban ((lanh hai) OR (thanh hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach thu)) nang xa hoi. hieu qua cham xuc ban ((lanh hai) OR (thanh hai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sach thu)) nang xa hoi. hieu qua cham xuc ban ((lanh hai) OR (thanh hai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach thu)) nang xa hoi. hieu qua cham xuc ban ((lanh hai) OR (thanh hai)) cua tre*.