Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
duc ban » duc tan, duc van, dua ban
hanh te » hanh tu, hanh ve, hanh de
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu

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 ky nang xa hoi. hieu van cam ((cua ban) or (duc ban)) hanh te ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van cam ((cua ban) OR (duc ban)) hanh te ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu van cam ((cua ban) or (duc ban)) hanh te ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van cam ((cua ban) or (duc ban)) hanh te ((cua tre) OR (cua te))*.