Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
su triet » su viet, su tien, ve triet
hanh lai » hanh lam, hanh tai, thanh lap
vien cac » vien bach, vien dai, vien da
va hanh » van hanh, va thanh, va danh
cac tuc » cac toc, cac tu, cac tac
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((so sach) or (so sanh))) or (vu sach)) y nang xa hoi. hieu vien cac tuc va hanh lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (so sanh))) OR (vu sach)) y nang xa hoi. hieu vien cac tuc va hanh lai su triet.
• Adding a wildcard symbol may retrieve word variants: ((((so sach) or (so sanh))) or (vu sach)) y nang xa hoi. hieu vien cac tuc va hanh lai su triet*.