Perhaps you should try some spelling variations:
nganh nang » nganh nong, ganh nang, ngan hang
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nganh » hoc nhanh
phan van » pham van, thanh van, luan van
cuu phan » cuu phat, cuu nhan, uu phan
nang hoc » nang doc, nang luc, dong hoc
sach hoi » sach doi, sach moi, cach thoi
sach hoc » cach hoc, mach hoc, sach duoc
son hoc » mon hoc, so hoc, son hoa
hoc xa » hoc ma
ho cuu » ho chu, ho cua, so cuu
xa ho » xa hoi, xa hoa, xa hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) OR (sach hoi)) tap, nghien huu son hoc nganh nang hoc xa ho cuu phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (sach hoi)) tap, nghien huu son hoc nganh nang hoc xa ho cuu phan van".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) OR (sach hoi)) tap, nghien huu son hoc nganh nang hoc xa ho cuu phan van*.