Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
ve triet » va trien, su triet
va thanh » gia thanh, va tinh, le thanh
ve chat » va chat, van chat
ve cham » va cham, vu cham, ve chim
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
hoi ve » hoi va, moi ve, noi ve
te sac » te sach, te cac, te san

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 (ve chat)) soc ((va thanh) or (ban thanh)) hoi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((va thanh) OR (ban thanh)) hoi ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((va thanh) or (ban thanh)) hoi ve triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang xa hoi. hieu ((ve cham) OR (ve chat)) soc ((va thanh) or (ban thanh)) hoi ve triet*.