Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
danh nhan » doanh nhan, thanh nhan, benh nhan
nhan dan » phan dau, gian dan, nhan tai
hai danh » thai danh, hai anh, hai dang
khoa hoc » hoa hoc
cong hoc » dong hoc, cong hoa, cong coc
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
sach moi » sach doi, sach hoi, bach mai
hoc ta » hoc tap, hoc tai, hoc tan
ta hai » tai hai, tac hai, tra hai

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) OR (sach moi)) tap, nghien cuu cong hoc nganh khoa hoc ta hai danh nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (sach moi)) tap, nghien cuu cong hoc nganh khoa hoc ta hai danh nhan dan*".