Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
nang may » mang may, nang ma, bang may
ve triet » su triet
van hanh » van thanh, ban hanh, van anh
may hoi » may thoi, tay hoi, mai hoi
hieu ve » hieu va, hieu van
su sai » su tai, su hai, su dai
sai ky » sac ky
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky nang may hoi. hieu ve ((cam tu) or (cam xuc)) van hanh vi ((ve triet) OR (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang may hoi. hieu ve ((cam tu) OR (cam xuc)) van hanh vi ((ve triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky nang may hoi. hieu ve ((cam tu) or (cam xuc)) van hanh vi ((ve triet) OR (va trien))".
• Adding a wildcard symbol may retrieve word variants: su sai ky nang may hoi. hieu ve ((cam tu) or (cam xuc)) van hanh vi ((ve triet) OR (va trien))*.