Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
long thuoc » luong thuoc, dong thuoc, khong thuoc
khong hoc » khung hoc, thong hoc, khong thuoc
mach hoc » cach hoc, dich hoc, anh hoc
long hoc » dong hoc, long soc, duong hoc
dan nhan » danh nhan, dan chan, van nhan
nhan dan » phan dau, gian dan, nhan tai
ke mach » ke hoach
hoi dan » hoa dan, hoc dan, hoi dap
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: ke mach hoc tap, nghien cuu ((long hoc) OR (long thuoc)) nganh khong hoc xa hoi dan nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ke mach hoc tap, nghien cuu ((long hoc) OR (long thuoc)) nganh khong hoc xa hoi dan nhan dan".
• Adding a wildcard symbol may retrieve word variants: ke mach hoc tap, nghien cuu ((long hoc) OR (long thuoc)) nganh khong hoc xa hoi dan nhan dan*.