Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh cong » nhanh chong, thanh cong
luong hoc » duong hoc, luong hoa, luong thuoc
tuong hoc » truong hoc, tuong ho, duong hoc
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
tu sach » thu sach, su sach, te sach
ca luan » cu luan, ca lua, ca quan
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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 tap, nghien thu ((luong hoc) OR (tuong hoc)) nganh cong hoc xa hoi ca luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien thu ((luong hoc) OR (tuong hoc)) nganh cong hoc xa hoi ca luan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien thu ((luong hoc) OR (tuong hoc)) nganh cong hoc xa hoi ca luan van*.