Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
cua triet » cua viet, su triet, va triet
vien coc » vien cac, vien co, dien cuc
danh dai » danh dau, danh di, danh sai
su sach » so sach, vu sach
te sach » toc sach
tang ma » mang may, tang van
va danh » va dinh, va dan, va hanh
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (te sach)) ky ((nang x) or (tang ma)) hoi. hieu vien coc luc va danh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky ((nang x) OR (tang ma)) hoi. hieu vien coc luc va danh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky ((nang x) or (tang ma)) hoi. hieu vien coc luc va danh dai cua triet*.