Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
toc sach » hoc sach, doc sach, thuoc sach
khoa hoc » hoa hoc
cac luat » cap luat, cac xuat, cac thuat
luat van » luan van, luat dan, luat va
moi tap » moi tai, toi tap
hoi cac » hoc cac, voi cac, hoa cac
mo hoc » mon 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: ((thuat sach) or (toc sach)) moi tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac luat van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (toc sach)) moi tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac luat van.
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (toc sach)) moi tap, nghien cuu mo hoc nganh khoa hoc xa hoi cac luat van*.