Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thu sach » tu sach, thuat sach, thuoc sach
van chat » cao chat
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
phan su » phan suc, phan tu, nhan su
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang ((x hoi) or (o hoi)). hieu ((va cham) or (van chat)) duc va thanh phan su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang ((x hoi) OR (o hoi)). hieu ((va cham) OR (van chat)) duc va thanh phan su triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang ((x hoi) or (o hoi)). hieu ((va cham) or (van chat)) duc va thanh phan su triet*.