Perhaps you should try some spelling variations:
thien van » thi van
van quan » van ban
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac tuc » cac tu, cac tac, cac nuoc
cac toc » cac toi, cac nuoc, cac thoi
quan vi » quan li, quan tri, quan doi
vi cua » vai cua, di cua

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. thien van ((cac tuc) or (cac toc)) van quan vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. thien van ((cac tuc) OR (cac toc)) van quan vi cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. thien van ((cac tuc) or (cac toc)) van quan vi cua viet*.