Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh dai » thanh hai, thanh tai, thanh dat
tan thanh » tran thanh, tang thanh, toan thanh
thu sach » thuat sach, thuoc sach, thu hoach
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
tu sach » su sach, te sach, tu cach
tu cong » thu cong, te cong, tai cong
hieu ve » hieu va, hieu van
cong x » cong _, cong o, cong xay
x hoi » xa hoi, o hoi, x ho

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)) tu cong x hoi. hieu ve ((cham duc) or (pham duy)) tan thanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) tu cong x hoi. hieu ve ((cham duc) OR (pham duy)) tan thanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) tu cong x hoi. hieu ve ((cham duc) or (pham duy)) tan thanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) tu cong x hoi. hieu ve ((cham duc) or (pham duy)) tan thanh dai cua triet*.