Perhaps you should try some spelling variations:
nghiep thuoc » nghiem thuoc, nghiep thuc, nghiep theo
thuoc dong » thuoc dung, thuoc cong, thuoc dang
nganh khoa » nganh hoa, nganh khong, doanh khoa
sach duoc » sach nuoc, sach dao, sach dung
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
dan nhan » danh nhan, dan chan, van nhan
nhan van » nhan dan, nhan va, phan van
hoi dan » hoa dan, hoc dan, hoi dap
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: thu ((sach duoc) or (mach hoc)) tap, nghiep thuoc dong hoc nganh khoa hoc xa hoi dan nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach duoc) OR (mach hoc)) tap, nghiep thuoc dong hoc nganh khoa hoc xa hoi dan nhan van.
• Adding a wildcard symbol may retrieve word variants: thu ((sach duoc) or (mach hoc)) tap, nghiep thuoc dong hoc nganh khoa hoc xa hoi dan nhan van*.