Perhaps you should try some spelling variations:
thien van » thi van
cua triet » cua viet, su triet, va triet
van tham » van thanh, van tuan, van chat
tham soc » cham soc, tham nuoc, thai son
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hanh di » hanh vi, hanh de, danh di
hang di » hang doi, hang vi, hang dien
soc va » hoc va, loc va, doc va

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. thien van tham soc va ((hanh di) OR (hang di)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. thien van tham soc va ((hanh di) OR (hang di)) cua triet*.