Perhaps you should try some spelling variations:
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
dua tren » dung tren
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hang » van hang, va nang, va lang
hang vi » hang va, hanh vi, hang di
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu ve cac nuoc va hang vi ((dua tren) OR (cuu tre))~.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve cac nuoc va hang vi ((dua tren) or (cuu tre))*.