Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
nang dai » nang dau, nang tai, lang dai
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
lang xa » lang ha, dang xay
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va nang » van nang, da nang, cam nang
cua tre » cua te, cuu tre, cua triet
soc va » hoc va, loc va, doc va

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 tu ((lang xa) or (lang van)) hoi. hieu va cham soc va nang dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((lang xa) OR (lang van)) hoi. hieu va cham soc va nang dai cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tu ((lang xa) or (lang van)) hoi. hieu va cham soc va nang dai cua tre*.