Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
sach thu » sach thieu, sach tham, cach thuc
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
anh vi » hanh vi, anh va, anh vu
anh ve » hanh ve, anh va, anh viet
cua cu » cua chu, cua cau, cua su

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