Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, cach thuc
sach tham » sach nha
lang van » dang van, tang van, hoang van
thai cua » than cua, tai cuc, tri cua
van hoi » van hoa, van hoc, van hoe
qua cac » cua cac
cac xuc » cam xuc, cac nuoc, chat xuc
ca thai » chat thai, hoa thai
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
va ca » va cac, va cao, va cai

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 thue) or (sach tham)) lang van hoi. hieu qua cac xuc va ca thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach thue) OR (sach tham)) lang van hoi. hieu qua cac xuc va ca thai cua tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach thue) or (sach tham)) lang van hoi. hieu qua cac xuc va ca thai cua tre*.