Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
khien tu » dien tu
dong hoa » dong hoc, dong co
cham xuc » cam xuc, chat xuc, cham soc
xuc ban » duc ban, cuc ban, quoc ban
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
hien tu » dien tu
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky dong » ly dong, ky dang, ky cong
va cua » va chua, via cua, ma cua
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ky dong hoa hoi. ((hien tu) OR (khien tu)) cham xuc ban thanh ((va cua) or (ca cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky dong hoa hoi. ((hien tu) OR (khien tu)) cham xuc ban thanh ((va cua) OR (ca cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ky dong hoa hoi. ((hien tu) OR (khien tu)) cham xuc ban thanh ((va cua) or (ca cua)) te".
• Adding a wildcard symbol may retrieve word variants: bo sach ky dong hoa hoi. ((hien tu) OR (khien tu)) cham xuc ban thanh ((va cua) or (ca cua)) te*.