Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
hieu van » hieu va, thien van, lieu va
quan vi » quan li, quan tri, quan doi
tuan vi » luan vi, quans vi, tuan tai
te sach » toc sach
sach ky » sac ky, sach y, sach ty
tuc van » truc van, tuc va, duc van
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma

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