Perhaps you should try some spelling variations:
sach vu » sach tu, sach uu, sach xu
sach va » sach xa, sach ha, sach dao
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach vu) OR (sach va)) nang xa hoi. hieu ve cam ((xuc va) OR (duc va)) hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach vu) OR (sach va)) nang xa hoi. hieu ve cam ((xuc va) or (duc va)) hanh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach vu) OR (sach va)) nang xa hoi. hieu ve cam ((xuc va) or (duc va)) hanh vi cua tre*.