Perhaps you should try some spelling variations:
hieu vien » hieu hien, thieu nien, hieu tieng
hieu viec » nhieu viec, hieu ve, sieu viet
dan thuc » dan toc, am thuc
vat danh » va danh, van danh, luat danh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
da thuc » dai thuc, dam thuc, day thuc
danh vi » hanh vi, dinh vi, danh di
lua tre » cua tre, luy tre, dua tren
vi lua » vi luu

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 vien) OR (hieu viec)) ((da thuc) or (dan thuc)) vat danh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) ((da thuc) OR (dan thuc)) vat danh vi lua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) ((da thuc) or (dan thuc)) vat danh vi lua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. ((hieu vien) OR (hieu viec)) ((da thuc) or (dan thuc)) vat danh vi lua tre*.