Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
dam thuc » am thuc, dan thuc, nam thuc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
da thuc » dan thuc, dai thuc, day thuc
va danh » va dinh, va dan, va hanh
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 ((da thuc) OR (dam thuc)) va 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 ((da thuc) OR (dam thuc)) va danh vi lua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu vien ((da thuc) OR (dam thuc)) va danh vi lua tre*.