Perhaps you should try some spelling variations:
te sach » toc sach
cua tre » cua te, cua triet, dua tren
nang du » nang tu, nang luc, nang doc
va nang » van nang, da nang, cam nang
va cham » va chat, va tham
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cuu tre » cau tren, cau treo
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 ((nang xa) or (nang ma)) hoi. hieu va cham soc va nang du ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (nang ma)) hoi. hieu va cham soc va nang du ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang xa) or (nang ma)) hoi. hieu va cham soc va nang du ((cua tre) or (cuu tre))*.