Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
nganh nang » nganh nong, ganh nang, ngan hang
hoa nganh » hoc nganh, khoi nganh, hoa doanh
phan van » pham van, thanh van, luan van
cau phan » chau phan, cuu phan, cac phan
sach hoi » sach doi, sach moi, cach thoi
nang hoc » nang doc, nang luc, dong hoc
cach hoc » cach thuc, cach thoi, dich hoc
hoi cau » hoi chu, hoc cau, hoa cau
so hoa » do hoa, so ha
hoc xa » hoc ma
huu so » huu son, huu co, huu ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach hoc) or (sach hoi)) tap, nghien huu so hoa nganh nang hoc xa hoi cau phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach hoc) OR (sach hoi)) tap, nghien huu so hoa nganh nang hoc xa hoi cau phan van.
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) or (sach hoi)) tap, nghien huu so hoa nganh nang hoc xa hoi cau phan van*.