Perhaps you should try some spelling variations:
nhanh loi » thanh loi, nhanh li, nhan loai
van nhanh » van thanh, van hanh, van khanh
nam thuc » nam thuoc, am thuc, nam thu
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, dam thuc
co viet » so viet, hoc viet, hoa viet
su cac » tu cac, su cao, su can
o viet » so viet, hoc viet
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ve ((cam tuc) or (nam thuc)) van nhanh loi ((co viet) OR (o viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang x hoi. hieu ve ((cam tuc) OR (nam thuc)) van nhanh loi ((co viet) OR (o viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang x hoi. hieu ve ((cam tuc) or (nam thuc)) van nhanh loi ((co viet) OR (o viet))*".