Perhaps you should try some spelling variations:
van nhanh » van thanh, van hanh, van nhan
nhan thuc » nhan luc, dan thuc, toan thuc
van khanh » van thanh, van hanh, van anh
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
ca viet » va viet, co viet, hoa viet
su cac » tu cac, su can, eu cac
su cao » cu cao, vu cao, su co
x hoi » xa hoi, o hoi, x ho
li ca » ly ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su cac) OR (su cao)) ky nang x hoi. hieu va nhan thuc ((van nhanh) or (van khanh)) li ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su cac) OR (su cao)) ky nang x hoi. hieu va nhan thuc ((van nhanh) OR (van khanh)) li ca viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su cac) OR (su cao)) ky nang x hoi. hieu va nhan thuc ((van nhanh) or (van khanh)) li ca viet*".