Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban benh » san benh, ba benh, ban banh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van cau, van dam
van lam » van nam
xuc ban » duc ban, cuc ban, quoc ban
benh li » benh ly, benh lo, benh vi
cua tre » cua te, cuu tre, dua tren

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 cam) OR (van lam)) xuc ban benh li ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ((van cam) OR (van lam)) xuc ban benh li ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu ((van cam) OR (van lam)) xuc ban benh li ((cua tre) or (cua triet))*".