Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
xa thanh » va thanh, ha thanh, ta thanh
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nang » tru nang, tu nong, tu nano
nang xa » nang x, lang xa, nang ma
qua cao » qua cac, qua ca, qua cai
cao tuc » dao tuc, cao duc, cao suc
cua tre » cua te, cuu tre, dua tren

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 hoi. hieu qua cao tuc xa thanh van ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu nang xa hoi. hieu qua cao tuc xa thanh van ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach tu nang xa hoi. hieu qua cao tuc xa thanh van ((cua tre) OR (cua triet))*.