Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
te sach » toc sach
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
xuc ban » duc ban, cuc ban, quoc ban
nang xa » nang x, lang xa, nang ma
cua chu » sua chua
ve cac » vien cac

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