Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
thu luong » thu huong, thu tuong, phu luong
luong hoa » luong khoa, luong hoai, luong ha
hoa nhanh » hoc nhanh, hoa thanh, hoa khanh
chong hoc » chung hoc, chong doc, thong hoc
sach hoi » sach doi, sach moi, cach thoi
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
hoi cau » hoi chu, hoc cau, hoi cac
hoa cau » hoa cac, hoa dau, hoa mau

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