Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
vien cac » vien bach, vien dai, vien da
ban hanh » ban hang
hanh dai » hanh tai, hanh dao, vanh dai
co sach » bo sach, cuon sach
nang xa » lang xa, nang ma, mang xa
cac toc » cac toi, cac nuoc, cac thoi
toc ban » toc san, toc ba, hoc ban

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) or (co sach)) ky ((nang xa) or (nang x)) hoi. hieu vien cac toc ban hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (co sach)) ky ((nang xa) OR (nang x)) hoi. hieu vien cac toc ban hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (co sach)) ky ((nang xa) or (nang x)) hoi. hieu vien cac toc ban hanh dai cua triet*.