Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
vien cac » vien bach, vien dai, vien da
va dinh » van dinh, va kinh, vu dinh
lai cua » dai cua, hai cua, lai chau
va tinh » may tinh
so hanh » so sanh, so danh, co hanh
hanh ky » hanh kem
cac duc » cac du, cao duc, cac dac
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
va hanh » van hanh, va thanh, va danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: so hanh ky dang xay hoi. hieu vien cac duc ((va hanh) or (((va dinh) or (va tinh)))) lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so hanh ky dang xay hoi. hieu vien cac duc ((va hanh) OR (((va dinh) OR (va tinh)))) lai cua triet.
• Adding a wildcard symbol may retrieve word variants: so hanh ky dang xay hoi. hieu vien cac duc ((va hanh) or (((va dinh) or (va tinh)))) lai cua triet*.