Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham duy » pham duc
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duy van » duy vat, dung van
te sach » toc sach
lai cua » dai cua, hai cua, lai chau
tu sach » thu sach, tu cach, vu sach
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 (te sach))) or (su sach)) ty nang x hoi. hieu ve pham duy van hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (te sach))) OR (su sach)) ty nang x hoi. hieu ve pham duy van hanh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (te sach))) or (su sach)) ty nang x hoi. hieu ve pham duy van hanh lai cua triet*.