Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cham xuc » cam xuc, cham soc, pham duc
dong hoa » dong hoc, dong co
chat xuc » chat huu, cam xuc, chao xu
thanh va » thanh van, hanh va, thanh ha
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
ky dong » ly dong, ky dang, ky cong
hien tu » khien tu, dien tu
va cua » va chua, via cua, ca cua
cua tu » cua tuc, cua su, cua cu

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 hoc. hien tu ((cham xuc) or (chat xuc)) van thanh va cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky dong hoa hoc. hien tu ((cham xuc) OR (chat xuc)) van thanh va cua tu.
• Adding a wildcard symbol may retrieve word variants: so sach ky dong hoa hoc. hien tu ((cham xuc) or (chat xuc)) van thanh va cua tu*.