Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
hanh cua » manh cua, hang cua, hanh sua
xa thanh » va thanh, ha thanh, ta thanh
cua hoi » cua moi
cac tuc » cac toc, cac tu, cac tac
cac toi » cac thoi
vai cua » dai cua, hai cua, lai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thi hanh cua hoi. hieu qua ((cac tuc) or (cac toi)) xa thanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thi hanh cua hoi. hieu qua ((cac tuc) OR (cac toi)) xa thanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: toc sach thi hanh cua hoi. hieu qua ((cac tuc) or (cac toi)) xa thanh vai cua triet*.