Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thanh vi » hanh vi, thanh ve, nhanh vi
thanh va » thanh van, hanh va, thanh ve
thanh ha » thanh hoa, thanh hai, nhanh ha
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
nam xuc » cam xuc, nam xua, nam thuc
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: su sach ky nang xa hoi. hieu van nam xuc va ((thanh vi) or (((thanh va) OR (thanh ha)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu van nam xuc va ((thanh vi) OR (((thanh va) OR (thanh ha)))) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu van nam xuc va ((thanh vi) or (((thanh va) OR (thanh ha)))) cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu van nam xuc va ((thanh vi) or (((thanh va) OR (thanh ha)))) cua tre*.