Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vi » hanh vi, thanh va, thanh ve
su triet » su viet, su tien, ve triet
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
va chat » van chat, cao chat, hoa chat
y nang » ky nang, ly nang, v nang
tu ban » thu ban, te ban

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

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