Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
quoc ban » quoc bao, quoc lan, quoc quan
ban benh » san benh, ba benh, ban banh
nang xa » nang x, lang xa, nang ma
van han » van hanh, van phan, van nhan
benh ve » benh va, benh vien, benh viem
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 cac ky nang xa hoi. hieu van han quoc ban benh ve ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang xa hoi. hieu van han quoc ban benh ve ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang xa hoi. hieu van han quoc ban benh ve ((cua tre) OR (cua triet))*.