Perhaps you should try some spelling variations:
khanh vai » khanh van, hanh vi, hanh va
doc sach » hoc sach, toc sach, nuoc sach
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
cac thoi » cac toi, cac hop, cac tro
xa khanh » xa thanh, van khanh, dat khanh
su triet » su viet, su tien, ve triet
hanh xa » hanh va, hanh ma, hanh xu
hieu va » lieu va, hieu qua
cac tac » cac toc, cac bac, cac dac
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach thi hanh xa hoi. hieu va ((cac tac) or (cac thoi)) xa khanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach thi hanh xa hoi. hieu va ((cac tac) OR (cac thoi)) xa khanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: doc sach thi hanh xa hoi. hieu va ((cac tac) or (cac thoi)) xa khanh vai su triet*.