Perhaps you should try some spelling variations:
dang xay » dang van, van xay
hieu van » hieu va, thien van, lieu va
lang van » dang van, tang van, hoang van
te sach » toc sach
benh ve » benh va, benh vien, benh viem
bo benh » so benh, o benh, ba benh
nuoc bo » nuoc bao, nuoc bot, nuoc o
van hoc » van hoa
lang xa » lang ha
cua tre » cua te, cuu tre, cua triet
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((((lang xa) or (dang xay))) or (lang van)) hoi. hieu van hoc nuoc bo benh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((((lang xa) OR (dang xay))) OR (lang van)) hoi. hieu van hoc nuoc bo benh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y ((((lang xa) or (dang xay))) or (lang van)) hoi. hieu van hoc nuoc bo benh ve cua tre*.