Perhaps you should try some spelling variations:
te sach » toc sach
bo sach » co sach, hoc sach
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 » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
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: ((te sach) or (bo sach)) ky nang xa hoi. hieu ve cam ((xuc va) or (luc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (bo sach)) ky nang xa hoi. hieu ve cam ((xuc va) OR (luc va)) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (bo sach)) ky nang xa hoi. hieu ve cam ((xuc va) or (luc va)) hanh vi cua tre*.