Perhaps you should try some spelling variations:
sach vaya » sach va, sach hay, sach nay
sach vay » sach va, sach hay, sach nay
va hanh » van hanh, va thanh, va danh
qua cac » cua cac
qua cam » qua cham, qua ca, qua cai
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc 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 vay) or (sach vaya)) nang xa hoi. hieu ((qua cam) OR (qua cac)) xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach vay) OR (sach vaya)) nang xa hoi. hieu ((qua cam) OR (qua cac)) xuc va hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach vay) or (sach vaya)) nang xa hoi. hieu ((qua cam) OR (qua cac)) xuc va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: te ((sach vay) or (sach vaya)) nang xa hoi. hieu ((qua cam) OR (qua cac)) xuc va hanh vi cua tre*.