Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
thue nang » thien nang, thuat nang, thi nang
thu sach » tu sach, thuat sach, thuoc sach
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
duc ban » duc tan, duc van, dua ban
hanh va » hang va, hanh vi
cau tre » cau tren, cau treo, cau tra
va cam » va cham, va cao, va cai
va cau » van cau, va dau, va cao

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 thue nang xa hoi. lieu ((va cam) OR (va cac)) duc ban hanh va cau tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach thue nang xa hoi. lieu ((va cam) OR (va cac)) duc ban hanh va cau tre".
• Adding a wildcard symbol may retrieve word variants: thu sach thue nang xa hoi. lieu ((va cam) OR (va cac)) duc ban hanh va cau tre*.