Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
toc sach » hoc sach, doc sach, thuoc sach
sach hoi » sach doi, sach moi, cach thoi
tinh hoc » sinh hoc, tin hoc, hinh hoc
khoa hoc » hoa hoc
phap tao » phap tai, phap tang, phap giao
phap dao » phap day, phap dam, phap dau
hoi tai » hoc tai, hoi trac
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: toc sach hoi tai, nghien cuu tinh hoc nganh khoa hoc xa hoi va ((phap tao) OR (phap dao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach hoi tai, nghien cuu tinh hoc nganh khoa hoc xa hoi va ((phap tao) OR (phap dao))".
• Adding a wildcard symbol may retrieve word variants: toc sach hoi tai, nghien cuu tinh hoc nganh khoa hoc xa hoi va ((phap tao) OR (phap dao))*.