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
coc nganh » hoc nganh, cac nganh, chuc nganh
sach hoc » cach hoc, sach hoi, mach hoc
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
cac pham » tac pham, cac ham, cac phan
cap phan » cac phan, cao phan, cap han
tu sach » thu sach, su sach, te sach
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 hoc tap, nghiep thuc cong coc nganh khoa hoc xa hoi ((cac pham) or (cap phan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghiep thuc cong coc nganh khoa hoc xa hoi ((cac pham) OR (cap phan)) van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghiep thuc cong coc nganh khoa hoc xa hoi ((cac pham) or (cap phan)) van*.