Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh tri » thanh tra, thanh tai, chinh tri
so sach » bo sach, hoc sach
so sanh » do sanh
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
van bac » van ban, van bao, van hac
xuc van » duc van, luc van, vuc van
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: ((((so sach) OR (so sanh))) or (co sach)) ky nang xa hoi. thi van bac xuc van thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (so sanh))) OR (co sach)) ky nang xa hoi. thi van bac xuc van thanh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((so sach) OR (so sanh))) or (co sach)) ky nang xa hoi. thi van bac xuc van thanh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: ((((so sach) OR (so sanh))) or (co sach)) ky nang xa hoi. thi van bac xuc van thanh tri cua tre*.