Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
cach tru » cach tu, cac tru, cach thuc
tru nang » tra nang, tri nang, truc nano
van hanh » van thanh, ban hanh, van anh
va thanh » gia thanh, ban thanh, va tinh
su cach » su sach, tu cach, su cac
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
x hoi » xa hoi, o hoi, x ho
vi va » vi van, vai va, vu va

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

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