Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
giao cong » gia cong, giao thong, cao cong
hoc nganh » hoc nhanh
danh nhan » thanh nhan, benh nhan, dung nhan
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
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 giao cong hoc nganh khoa hoc xa hoi ((danh nhan) OR (doanh nhan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghiep giao cong hoc nganh khoa hoc xa hoi ((danh nhan) OR (doanh nhan)) van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghiep giao cong hoc nganh khoa hoc xa hoi ((danh nhan) OR (doanh nhan)) van*.