Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
truc van » truc va, thuc van, truc ban
van hanh » van thanh, ban hanh, van anh
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
vi va » vi van, vai va, vu va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (((so sach) OR (so sanh)))) ky nang xa hoi. lieu va cham truc van hanh vi va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (((so sach) OR (so sanh)))) ky nang xa hoi. lieu va cham truc van hanh vi va triet~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (((so sach) OR (so sanh)))) ky nang xa hoi. lieu va cham truc van hanh vi va triet*.