Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach moi » sach doi, sach hoi, bach mai
khoa hoc » hoa hoc
cua quan » qua quan, cua ban, cua dan
quan van » luan van, quan va, quan luan
tu sach » thu sach, su sach, te sach
moi tai » hoi tai, mo tai, moi thoi
mon hoc » toan hoc, dong hoc
hoi cua » hoi chuc
mo hoc » co hoc
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: tu sach moi tai, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc xa hoi cua quan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach moi tai, nghien cuu ((mo hoc) OR (mon hoc)) nganh khoa hoc xa hoi cua quan van.
• Adding a wildcard symbol may retrieve word variants: tu sach moi tai, nghien cuu ((mo hoc) or (mon hoc)) nganh khoa hoc xa hoi cua quan van*.