Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cap nuoc » dat nuoc
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
cua tre » cua te, dua tren, cua thep
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang
ve cap » ve cac, le cap, ve cai

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 cap nuoc va hang vi ((((cua tre) OR (cua triet))) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang xa hoi. hieu ve cap nuoc va hang vi ((((cua tre) OR (cua triet))) or (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu ve cap nuoc va hang vi ((((cua tre) OR (cua triet))) or (cuu tre))*.