Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cam quoc » cac quoc, cao quoc, nam quoc
quoc tao » quoc bao, cuoc tao, quoc cao
te sach » toc sach
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
tao ban » tao bac, cao bang, tao nhan
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
y nang » ky nang, ly nang, v nang
ban vi » ban voi, ban va, ban ve

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 nang xa hoi. hieu qua cam quoc tao ban vi ((((cua tre) or (cuu tre))) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu qua cam quoc tao ban vi ((((cua tre) OR (cuu tre))) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu qua cam quoc tao ban vi ((((cua tre) or (cuu tre))) or (cau triet))*.