Perhaps you should try some spelling variations:
van thiet » va thiet, dan thiet, can thiet
van triet » va triet, van trieu, hanh triet
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
qua cau » quan cau, qua cac, qua ca
cau luc » cau truc, cau phuc
luc va » duc va, tuc va, loc 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: ((su sach) OR (vu sach)) ky nang xa hoi. hieu qua cau luc va thanh vi ((van triet) OR (van thiet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang xa hoi. hieu qua cau luc va thanh vi ((van triet) OR (van thiet))~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ky nang xa hoi. hieu qua cau luc va thanh vi ((van triet) OR (van thiet))*.