Perhaps you should try some spelling variations:
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 thanh » hoan thanh, ha thanh, hoc thanh
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
tu sach » thu sach, su sach, te sach
hoi lau » hoi luu, hoi lang, hoi luan
hoi cau » hoi chu, hoc cau, hoa cau
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 hoc tap, nghien thu luong hoa thanh cong hoc xa ((hoi lau) OR (hoi cau)) luan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien thu luong hoa thanh cong hoc xa ((hoi lau) OR (hoi cau)) luan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien thu luong hoa thanh cong hoc xa ((hoi lau) OR (hoi cau)) luan van*.