Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
nhan dan » phan dau, gian dan, nhan tai
va nhan » van nhan, ca nhan, va phan
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: thuat ((sach hoc) OR (sach hoi)) tap, nghien cuu cong hoc nganh khung hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach hoc) OR (sach hoi)) tap, nghien cuu cong hoc nganh khung hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach hoc) OR (sach hoi)) tap, nghien cuu cong hoc nganh khung hoc xa hoi va nhan dan*.