Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san
ky va » ly va, ke va, my va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang xa hoi. hieu ((ve cham) or (vu cham)) duc ((va hanh) OR (va danh)) ky va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu ((ve cham) OR (vu cham)) duc ((va hanh) OR (va danh)) ky va trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. hieu ((ve cham) or (vu cham)) duc ((va hanh) OR (va danh)) ky va trien".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu ((ve cham) or (vu cham)) duc ((va hanh) OR (va danh)) ky va trien*.