Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
cac luc » cau luc, coc luc, cac nuoc
danh vi » dinh vi, danh di, danh va
cuu tre » cua tre, cau tren, cau treo
luc va » duc va, tuc va, loc va

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 ky nang xa hoi. hieu van cac luc va ((danh vi) OR (hanh vi)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu van cac luc va ((danh vi) OR (hanh vi)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van cac luc va ((danh vi) OR (hanh vi)) cuu tre*.