Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cuc nganh » chuc nganh, cac nganh, cua nganh
mach hoc » cach hoc, dich hoc, anh hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong cuc » trong cuoc, thong cua, cong chuc
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
tu mach » tu cach, tu manh, tu hach
phan va » nhan va, han va, phan ba
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 mach hoc tap, nghien cuu tong cuc nganh khoa hoc xa hoi va ((phan va) or (phan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cuu tong cuc nganh khoa hoc xa hoi va ((phan va) OR (phan van)).
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cuu tong cuc nganh khoa hoc xa hoi va ((phan va) or (phan van))*.