Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh hoai
thanh do » thanh de, thanh pho, thanh hoa
te sach » toc sach
xuc gia » duc gia, luc gia, tuc gia
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
va nang » van nang, da nang, cam nang
vu dang » su dang, vu quang, cua dang
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: te sach ((vu dang) or (va nang)) xa hoi. hieu va cac xuc gia ((thanh doi) OR (thanh do)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((vu dang) OR (va nang)) xa hoi. hieu va cac xuc gia ((thanh doi) OR (thanh do)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((vu dang) or (va nang)) xa hoi. hieu va cac xuc gia ((thanh doi) OR (thanh do)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((vu dang) or (va nang)) xa hoi. hieu va cac xuc gia ((thanh doi) OR (thanh do)) cua tre*.