Perhaps you should try some spelling variations:
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
van cao » van dao, van hao, van cau
van bao » van ban, van dao
va dung » van dung, va duong, vat dung
tai cua » thai cua, tai cuc, tri cua
sac ky » cac ky, sai ky
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: tu ((sach ky) or (sac ky)) nang xa hoi. hieu ((van cao) or (van bao)) duc va dung tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. hieu ((van cao) OR (van bao)) duc va dung tai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang xa hoi. hieu ((van cao) or (van bao)) duc va dung tai cua te*.