Perhaps you should try some spelling variations:
canh khoa » anh khoa, doanh khoa, chinh khoa
xanh khoa » anh khoa, doanh khoa, nganh khoa
sach hoc » cach hoc, sach hoi, mach hoc
cuu tong » cuu cong, cuu tinh, huu tung
tong luc » dong luc, tong cuc, truong luc
ha doanh » hoa doanh, nha doanh, va doanh
nhan van » nhan dan, nhan va, phan van
te sach » toc sach
ma ha » ma hoa, mai ha, my ha

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, nghien cuu tong luc ((canh khoa) OR (xanh khoa)) hoc ma ha doanh nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu tong luc ((canh khoa) OR (xanh khoa)) hoc ma ha doanh nhan van".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu tong luc ((canh khoa) OR (xanh khoa)) hoc ma ha doanh nhan van*.