Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
sach thu » sach thieu, sach tham, cach thuc
nang xa » nang x, lang xa, nang ma
xuc van » duc van, vuc van, xuc ban
luc van » luoc van, luu van, duc van
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
va cuu » va cau, va chu, va huu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach thu) OR (sach thue)) nang xa hoi. lieu va cam ((xuc van) or (luc van)) hanh va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach thu) OR (sach thue)) nang xa hoi. lieu va cam ((xuc van) OR (luc van)) hanh va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach thu) OR (sach thue)) nang xa hoi. lieu va cam ((xuc van) or (luc van)) hanh va cuu tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach thu) OR (sach thue)) nang xa hoi. lieu va cam ((xuc van) or (luc van)) hanh va cuu tre*.