Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
sach lo » sach dao, sach doi, sach hoi
hanh de » hanh ve, hanh kem
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, nang ma
lo nang » ho nang, ly nang, loai nang
cua tre » cua te, cuu tre, cua triet
ve cam » ve cac, va cam, ve cai
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: vu sach lo nang xa hoi. hieu ((ve cam) OR (ve cham)) xuc va ((hanh vi) or (hanh de)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach lo nang xa hoi. hieu ((ve cam) OR (ve cham)) xuc va ((hanh vi) OR (hanh de)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach lo nang xa hoi. hieu ((ve cam) OR (ve cham)) xuc va ((hanh vi) or (hanh de)) cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach lo nang xa hoi. hieu ((ve cam) OR (ve cham)) xuc va ((hanh vi) or (hanh de)) cua tre*.