Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
bao thuc » cao thuoc, am thuc, va thuc
hanh lam » thanh lap, hanh kem, hanh va
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
bao xuc » bao luc
va hanh » van hanh, va thanh, va danh
lam su » lai su, lam so, lam vu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu van ((bao xuc) OR (bao thuc)) va hanh lam su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu van ((bao xuc) OR (bao thuc)) va hanh lam su triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van ((bao xuc) OR (bao thuc)) va hanh lam su triet*.