Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hanh dao » lanh dao, thanh dat, thanh dam
hanh dai » hanh tai, vanh dai, thanh dat
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
xang x » nang x
x hoi » xa hoi, o hoi, x ho

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 (thuoc sach)) ty xang x hoi. hieu va cac xuc va ((hanh dai) OR (hanh dao)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuoc sach)) ty xang x hoi. hieu va cac xuc va ((hanh dai) OR (hanh dao)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuoc sach)) ty xang x hoi. hieu va cac xuc va ((hanh dai) OR (hanh dao)) cuu tre*".