Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh va » thanh van, hanh va, thanh ha
tay dong » tac dong, day dong, tai dong
cham xuc » cam xuc, chat xuc, cham soc
so sach » so sanh, bo sach, co sach
xuc van » duc van, luc van, vuc van
tu cham » toc cham, thi cham
hieu tu » chieu tu, hieu tuc, hien tu
cua tre » cua te, cuu tre, cua triet
hoa hoi » khoa hoi, hoa doi, hoc hoi
ty dong » tu dong, ly dong, ty nong
va cua » va chua, via cua, ca 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 ((ty dong) OR (tay dong)) ((hoa hoi) or (hoa hoc)). hieu tu cham xuc van thanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty dong) OR (tay dong)) ((hoa hoi) OR (hoa hoc)). hieu tu cham xuc van thanh va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((ty dong) OR (tay dong)) ((hoa hoi) or (hoa hoc)). hieu tu cham xuc van thanh va cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ((ty dong) OR (tay dong)) ((hoa hoi) or (hoa hoc)). hieu tu cham xuc van thanh va cua tre*.