Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nganh » hoc nhanh
duong hoc » dong hoc, dung hoc, duong hoi
sach hoc » cach hoc, sach hoi, mach hoc
cau phan » chau phan, cuu phan, cac phan
phan van » pham van, thanh van, luan van
tu sach » thu sach, su sach, te sach
huu mot » cuu mot, huy mot, hieu mot
mot hoc » mon hoc, mo hoc, mot goc
hoi cau » hoi chu, hoc cau, hoa cau

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 huu mot hoc nganh ((duong hoc) or (nong thon)) xa hoi cau phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien huu mot hoc nganh ((duong hoc) OR (nong thon)) xa hoi cau phan van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien huu mot hoc nganh ((duong hoc) or (nong thon)) xa hoi cau phan van*.