Perhaps you should try some spelling variations:
sach tham » sach nha
tham nang » nham nang, tham lang, tham nhung
van hanh » van thanh, ban hanh, van anh
vien cac » vien bach, vien dai, vien da
te sach » toc sach
xuc van » duc van, luc van, vuc van
cua chu » sua chua
nang xa » nang x, lang xa, nang ma
ve cac » va cac
cua cu » cua cau, cua su, cua co

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 tham nang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh vi ((cua cu) or (cua chu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tham nang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh vi ((cua cu) OR (cua chu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tham nang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh vi ((cua cu) or (cua chu))".
• Adding a wildcard symbol may retrieve word variants: te sach tham nang xa hoi. hieu ((ve cac) OR (vien cac)) xuc van hanh vi ((cua cu) or (cua chu))*.