Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
mach hoc » cach hoc, dich hoc, anh hoc
long hoc » long soc, long thuoc, duong hoc
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
te mach » ke mach, te sach, tim mach
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao
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: te mach hoc tap, nghien cuu ((long hoc) OR (dong hoc)) nganh khoa hoc xa hoi va nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te mach hoc tap, nghien cuu ((long hoc) OR (dong hoc)) nganh khoa hoc xa hoi va nhan va".
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien cuu ((long hoc) OR (dong hoc)) nganh khoa hoc xa hoi va nhan va*.