Perhaps you should try some spelling variations:
nghiep thuc » nghiem thuc, nghiem thuoc, nghe thuc
nganh khoa » nganh hoa, nganh khong, doanh khoa
thuc cong » thuoc cong, thu cong, chuc cong
hoa nganh » hoc nganh, khoi nganh, hoa doanh
sach hoc » cach hoc, sach hoi, mach hoc
cong hoa » dong hoa, dong hoc, hang hoa
khoa hoc » hoa hoc
nhan van » nhan va, phan van, nha van
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach hoc tap, nghiep thuc cong hoa nganh khoa hoc ma hoi va ((nhan van) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghiep thuc cong hoa nganh khoa hoc ma hoi va ((nhan van) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghiep thuc cong hoa nganh khoa hoc ma hoi va ((nhan van) or (nhan dan))*.