Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van dau » van dao, phan dau
dan dau » danh dau, doan dau, dan dat
cua tre » cuu tre, cua triet, dua tren
luc va » duc va, tuc va, loc va
va dan » ca dan, va dao, va dau
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 dau) or (van nam)) luc va dan dau ((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 dau) OR (van nam)) luc va dan dau ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ((van dau) or (van nam)) luc va dan dau ((cua tre) or (cua te))*.