Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
cong hoc » dong hoc, cong hoa, cong coc
dap nhan » dap nha, dac nhan, dam nhan
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
hoi tap » hoc tap, hai tap, toi tap
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: tu sach ((hoi tap) OR (hoi tai)), nghien cuu khoa hoc nganh cong hoc xa hoi dap nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((hoi tap) OR (hoi tai)), nghien cuu khoa hoc nganh cong hoc xa hoi dap nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu sach ((hoi tap) OR (hoi tai)), nghien cuu khoa hoc nganh cong hoc xa hoi dap nhan dan*.