Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
sach va » sach xa, sach ha, sach dao
sach v » sach y, sach 2, sach vay
ve cac » va cac, vien cac
vi cua » vai cua, di cua
ve cam » ve cham, va cam, ve cai

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 v) or (sach va)) lang xa hoi. hieu ((ve cam) or (ve cac)) xuc van hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach va)) lang xa hoi. hieu ((ve cam) OR (ve cac)) xuc van hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach v) or (sach va)) lang xa hoi. hieu ((ve cam) or (ve cac)) xuc van hanh vi cua tre*.