Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
tu sach » thu sach, su sach, te sach
lam xuc » cam xuc, lam duoc
dinh vi » dinh ve, dinh viet, dinh tri
danh vi » hanh vi, danh di, danh va
sach ly » sach y, sach lo, sach ty
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly nang xa hoi. ((hieu van) or (thien van)) lam xuc va ((danh vi) OR (dinh vi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang xa hoi. ((hieu van) OR (thien van)) lam xuc va ((danh vi) OR (dinh vi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang xa hoi. ((hieu van) or (thien van)) lam xuc va ((danh vi) OR (dinh vi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang xa hoi. ((hieu van) or (thien van)) lam xuc va ((danh vi) OR (dinh vi)) cua tre*.