Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
te mach » ke mach, te sach, tim mach
hoi van » hoi dan, hai van, hoi han

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te mach hoc tap, nghien cuu dong hoc nganh khoa hoc ma ((hoi van) OR (hoi va)) phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te mach hoc tap, nghien cuu dong hoc nganh khoa hoc ma ((hoi van) OR (hoi va)) phan van".
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu dong hoc nganh khoa hoc ma ((hoi van) OR (hoi va)) phan van*.