Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham xuc » cam xuc, chat xuc, cham soc
dong hoa » dong co
dong hoc » dong co, dong luc
va chua » vua chua, ca chua, va chu
xuc van » duc van, luc van, vuc van
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
hien tu » khien tu, dien tu
tu cham » toc cham, thi cham
va cua » via cua, ca cua, ma cua

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

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