Perhaps you should try some spelling variations:
thien van » thi van
thanh lam » thanh lap, hanh lam, thanh nam
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
tu sach » su sach, te sach, tu cach
van hai » van ha, van chat, van hanh
hai tac » hai trac, hai tan, hai tap
lam cua » nam cua, lam chat
x hoi » xa hoi, o hoi, x ho
gia » giao

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) or (thu sach)) ky nang x hoi. thien van hai tac gia thanh lam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. thien van hai tac gia thanh lam cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang x hoi. thien van hai tac gia thanh lam cua triet*.