Perhaps you should try some spelling variations:
thien van » thi van
thanh lap » thanh san, phan lap, thanh hai
cua triet » cua viet, su triet, va triet
van cham » van chat, van tham, va cham
hanh lai » hanh lam, hanh tai, thanh loi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, co hoi, cao hoc
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang cao hoi. thien van cham soc va ((hanh lai) OR (thanh lap)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang cao hoi. thien van cham soc va ((hanh lai) OR (thanh lap)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang cao hoi. thien van cham soc va ((hanh lai) OR (thanh lap)) cua triet*.