Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh nong » nganh cong
hoc nganh » hoc nhanh
van thanh » ban thanh, van tuan
mach hoc » cach hoc, dich hoc, anh hoc
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
vu mach » vi mach, vu bach, vu manh
thon xa » thong xa, thoi xa, thong xay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu mach hoc tap, nghien cac cong hoc nganh nong thon xa hoi ((van ban) or (van thanh)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu mach hoc tap, nghien cac cong hoc nganh nong thon xa hoi ((van ban) OR (van thanh)) van.
• Adding a wildcard symbol may retrieve word variants: vu mach hoc tap, nghien cac cong hoc nganh nong thon xa hoi ((van ban) or (van thanh)) van*.