Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
nong hoc » dong hoc, nang hoc, duong hoc
dan phan » doan phan, dan chan, van phan
te sach » toc sach
hoi dan » hoa dan, hoc dan, hoi dap
phan va » phan van, nhan va, han va

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 tap, nghien cuu cong hoc nganh ((nong hoc) OR (nong thon)) xa hoi dan phan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu cong hoc nganh ((nong hoc) OR (nong thon)) xa hoi dan phan va".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu cong hoc nganh ((nong hoc) OR (nong thon)) xa hoi dan phan va*.