Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, chien huu
phap khoa » pham khoa, phap hoan, hop khoa
luan luan » quan luan, luan luong, luan hoan
benh hoc » sinh hoc
hoc phap » hoc phan, hoc phat, hoc pho
khoa hoc » hoa hoc
hoi luan » hoa luan, hoc luan, khoa luan
te benh » te ben, tren benh, tai benh
mot hoc » mon hoc, mo hoc, mot goc
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: te benh hoc tap, ((nghien huu) or (nhiem huu)) mot hoc phap khoa hoc xa hoi luan luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te benh hoc tap, ((nghien huu) OR (nhiem huu)) mot hoc phap khoa hoc xa hoi luan luan van.
• Adding a wildcard symbol may retrieve word variants: te benh hoc tap, ((nghien huu) or (nhiem huu)) mot hoc phap khoa hoc xa hoi luan luan van*.