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