Perhaps you should try some spelling variations:
sach thuc » cach thuc, sach thu, sach thue
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
van hanh » van thanh, ban hanh, van anh
dieu cua » dieu tra
hanh xa » hanh va, hanh ma, hanh xu
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
cua tre » cua te, cuu tre, cua triet
tuan » quan, tran, luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thuc hanh xa hoi. hieu va chat xuc ((van hanh) or (tuan anh)) dieu cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thuc hanh xa hoi. hieu va chat xuc ((van hanh) OR (tuan anh)) dieu cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach thuc hanh xa hoi. hieu va chat xuc ((van hanh) or (tuan anh)) dieu cua tre*.