Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh lam » thanh lap, hanh kem, hanh va
van hanh » van thanh, ban hanh, van anh
chat lua » chat cua, chat va, chat huu
chat luc » chat xuc, nhan luc, chat huu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ty » sach tu, sach thu, xach tay
lam va » nam va, dam va, lam ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach y)) nang xa hoi. hieu ve ((chat luc) OR (chat lua)) van hanh lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang xa hoi. hieu ve ((chat luc) OR (chat lua)) van hanh lam va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach y)) nang xa hoi. hieu ve ((chat luc) OR (chat lua)) van hanh lam va triet".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach y)) nang xa hoi. hieu ve ((chat luc) OR (chat lua)) van hanh lam va triet*.