Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
tinh vien » sinh vien, tinh dien, tinh viet
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
mai hoi » mai khoi, dai hoi, lai hoi
nam luc » nang luc, nhan luc, nam thuc
va tinh » may tinh
ma hoi » xa hoi, ma hoa, me hoi
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: tu cac ky nang ((ma hoi) OR (mai hoi)). hieu van nam luc va tinh vien ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((ma hoi) OR (mai hoi)). hieu van nam luc va tinh vien ((cua triet) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((ma hoi) OR (mai hoi)). hieu van nam luc va tinh vien ((cua triet) or (su triet))*".