Perhaps you should try some spelling variations:
dung sai » dung tai, dung va, dung dat
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu le » hieu ve, hieu he, hieu ly
xa dung » xay dung, xa dong, va dung
cua tre » cua te, cuu tre, cua triet
le nam » ly nam, he nam, le na
thu xa » thu xac, thu ha, thu xe
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (te sach)) ky nang xa hoi. hieu le nam thu xa dung sai ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang xa hoi. hieu le nam thu xa dung sai ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang xa hoi. hieu le nam thu xa dung sai ((cua tre) or (cua tu))*.