Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
sach moi » sach doi, sach hoi, bach mai
cua phan » cua nhan, cua phap, cua han
phan van » pham van, thanh van, luan van
tu sach » thu sach, su sach, te sach
moi tap » moi tai, toi tap
hoi cua » hoi chuc
mo hoc » mon hoc, co hoc

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 moi tap, nghien cuu mo hoc nganh ((khoa hoc) or (hoa hoc)) xa hoi cua phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach moi tap, nghien cuu mo hoc nganh ((khoa hoc) OR (hoa hoc)) xa hoi cua phan van.
• Adding a wildcard symbol may retrieve word variants: tu sach moi tap, nghien cuu mo hoc nganh ((khoa hoc) or (hoa hoc)) xa hoi cua phan van*.