Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
thong hoc » thuong hoc, tuong hoc, thong hoi
luan phan » luan van, luan hoan
thong hoa » thong khoa, thong ha, thong hoi
hoc nhanh » hoc nganh, hoc phan
hoi luan » hoa luan, hoc luan, khoa luan
phan tai » pham tai, nhan tai, phan thi
sach doi » sach hoi, sach moi, sach dao
mot hoc » mon hoc, mo hoc, mot goc
huu mot » cuu mot, huy mot, hieu mot
doi tap » doi tac, doi dap, doi tai
so sach » so sanh, bo sach, co sach
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach doi tap, nghien huu mot hoc nhanh ((thong hoc) OR (thong hoa)) ma hoi luan phan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach doi tap, nghien huu mot hoc nhanh ((thong hoc) OR (thong hoa)) ma hoi luan phan tai*".