Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van chat » cao chat
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
ve chat » va chat
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
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: ((tu cac) or (su sach)) ky nang xa hoi. hieu ((ve chat) OR (van chat)) xuc van thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (su sach)) ky nang xa hoi. hieu ((ve chat) OR (van chat)) xuc van thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (su sach)) ky nang xa hoi. hieu ((ve chat) OR (van chat)) xuc van thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (su sach)) ky nang xa hoi. hieu ((ve chat) OR (van chat)) xuc van thanh vi cua tre*.