Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
va thuat » ky thuat, ki thuat, va thuc
va chat » van chat, va phat, cao chat
luc ban » duc ban, cuc ban, luc bat
su sach » so sach, vu sach
va cham » va tham
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang x hoi. hieu ((va thuat) or (((va cham) OR (va chat)))) luc ban thanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu ((va thuat) OR (((va cham) OR (va chat)))) luc ban thanh vi cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang x hoi. hieu ((va thuat) or (((va cham) OR (va chat)))) luc ban thanh vi cua viet*".