Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
sach thi » sach thu, sach tai, sach thieu
toc sach » hoc sach, doc sach, thuoc sach
thi hanh » thi thanh
cua moi » cua mot
hieu va » lieu va, hieu qua
xa hanh » xa thanh, xa khanh, va hanh
tai cua » thai cua, tai cuc, tri cua
cac tu » cac thu, cach tu, cac du

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) OR (cua moi)). hieu va ((cac tu) or (cac nuoc)) xa hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thi hanh ((cua hoi) OR (cua moi)). hieu va ((cac tu) OR (cac nuoc)) xa hanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach thi hanh ((cua hoi) OR (cua moi)). hieu va ((cac tu) or (cac nuoc)) xa hanh tai cua triet*".