Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
van anh » van thanh, tuan anh, van minh
duc van » duc va, duc tan, duc manh
su tien » su kien, su hien, tu tieng
nang xa » nang x, lang xa, nang ma
vu nang » vuc nang, va nang, vu dang
va cao » va cac, va dao, va bao
anh ve » hanh ve, anh va, anh viet
va co » vo co
ve su » va su

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) or (toc sach)) vu nang xa hoi. lieu ((va cao) or (va co)) duc van anh ve su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) vu nang xa hoi. lieu ((va cao) OR (va co)) duc van anh ve su tien.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) vu nang xa hoi. lieu ((va cao) or (va co)) duc van anh ve su tien*.