Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
hanh vai » hanh vi, hanh va, hanh tai
hanh xa » hanh va, hanh ma, hanh xu
cac tuc » cac tu, cac tac, cac nuoc
cac toc » cac toi, cac nuoc, cac thoi
xa hanh » xa thanh, xa khanh, va hanh
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: hoc sach thi hanh xa hoi. hieu qua ((cac tuc) or (cac toc)) xa hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach thi hanh xa hoi. hieu qua ((cac tuc) OR (cac toc)) xa hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: hoc sach thi hanh xa hoi. hieu qua ((cac tuc) or (cac toc)) xa hanh vai cua triet*.