Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
phan tuan » pham tuan, phan quan, phan xuan
hoa phan » hoa dan, co phan
tuan van » luan van, tran van, tan van
su sach » vu sach
so sach » so sanh, bo sach, co sach
mot hoc » mon hoc, mo hoc, mot goc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) hoc tap, nghien cua mot hoc nganh hoa hoc ma hoa phan tuan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) hoc tap, nghien cua mot hoc nganh hoa hoc ma hoa phan tuan van.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) hoc tap, nghien cua mot hoc nganh hoa hoc ma hoa phan tuan van*.