Perhaps you should try some spelling variations:
nganh nong » nganh cong
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
nong hoc » dong hoc, nang hoc, nong thon
dan phan » doan phan, dan chan, van phan
hoi dan » hoa dan, hoc dan, hoi dap
phan va » phan van, nhan va, han va
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 ((sach hoc) OR (mach hoc)) tap, nghien cuu cong hoc nganh nong hoc xa hoi dan phan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (mach hoc)) tap, nghien cuu cong hoc nganh nong hoc xa hoi dan phan va".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (mach hoc)) tap, nghien cuu cong hoc nganh nong hoc xa hoi dan phan va*.