Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
hieu vien » hieu hien, hieu viec, thieu nien
su triet » su viet, su tien, ve triet
vien hoc » dien hoc, vien khoa, khien hoc
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang

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 y nang xa hoi. hieu vien hoc nuoc ((van hanh) or (va danh)) ly ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu vien hoc nuoc ((van hanh) OR (va danh)) ly ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. hieu vien hoc nuoc ((van hanh) or (va danh)) ly ((cua triet) OR (su triet))*".