Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
luong hoa » luong khoa, luong hoai, huong hoa
sach hoi » sach doi, sach moi, cach thoi
luong ha » luong va, long ha, luong khoa
cong hoc » dong hoc, cong hoa, cong coc
lau luan » dau luan, lap luan, khau luan
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
hoi lau » hoi cau, hoi luu, hoi lang
hoc xa » hoc ma

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