Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
dua tren » dung tren
ban hanh » ban hang
su sach » so sach, vu sach
hanh ve » hanh vi, hanh va, hanh kem
xuc ban » duc ban, cuc ban, quoc ban
cao xuc » cam xuc, cao duc, cao suc
cuu tre » cua tre, cau tren, cau treo
va cao » va cac, va co, va dao
ma hoi » mai hoi, xa hoi, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu nang ((ma hoi) OR (ma hoa)). lieu va cao xuc ban hanh ve ((dua tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu nang ((ma hoi) OR (ma hoa)). lieu va cao xuc ban hanh ve ((dua tren) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thu nang ((ma hoi) OR (ma hoa)). lieu va cao xuc ban hanh ve ((dua tren) or (cuu tre))*".