Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
bao thuc » am thuc, va thuc, dan thuc
hanh tri » thanh tri, hanh tai, hanh trinh
so sach » so sanh, bo sach, co 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
cua tre » cua te, cuu tre, cua triet

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

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