Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
dau tuc » dau tu, dao tuc, cau truc
tuc van » thuc van, truc van, tuc va
cua tre » cua te, cuu tre, cua triet
va dau » va dao
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach y)) nang xa hoi. lieu va dau tuc van thanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach y)) nang xa hoi. lieu va dau tuc van thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) OR (sach y)) nang xa hoi. lieu va dau tuc van thanh vi cua tre*.