Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
van hang » van khang, van hoang, van thang
cham xuc » cam xuc, chat xuc, cham soc
tu cham » toc cham, thi cham
hang di » hang doi, hang vi, hang dien
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
hieu tu » chieu tu, hieu tuc, hien tu
cua tre » cua te, cuu tre, cua triet
nang o » nang co, nang ho, nang ro
di cua » dai cua, doi cua, de cua
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (((thuoc sach) or (thu hoach)))) ky nang o hoi. hieu tu cham xuc van hang di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((thuoc sach) OR (thu hoach)))) ky nang o hoi. hieu tu cham xuc van hang di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (((thuoc sach) or (thu hoach)))) ky nang o hoi. hieu tu cham xuc van hang di cua tre*.