Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
dau tren » dau tien, dat tren, dau tieng
toc sach » hoc sach, doc sach, thuoc sach
dang van » hoang van, hang va
soc ban » hoc ban, coc ban, so ban
cua tre » cua te, cuu tre, cua triet
su sach » so sach, vu sach
su cham » su pham, tu cham, vu cham
van hoc » van hoa
tu dang » thu dang, tu dong, su dang
hieu su » hieu sau, tieu su, hieu so

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (toc sach)) tu dang van hoc. hieu su cham soc ban thanh lai ((cua tre) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (toc sach)) tu dang van hoc. hieu su cham soc ban thanh lai ((cua tre) OR (dau tren)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (toc sach)) tu dang van hoc. hieu su cham soc ban thanh lai ((cua tre) or (dau tren))*.