Perhaps you should try some spelling variations:
nganh nong » nganh cong
cach thoi » cac thoi, cach thuc, cach noi
thuoc tai » nuoc tai, hoc tai, thuoc ma
hoc nganh » hoc nhanh
cac nhan » ca nhan, cac nha, cam nhan
thuoc la » thuoc ma, thuoc va, thuoc ban
thu cach » thuc cach, thu canh, tu cach
thoi dai » hoc dai, hoi dap, hoi dan
nhan van » nhan dan, nhan va, phan van
mon hoc » toan hoc, dong hoc
cuu mon » cuu mo, cuu mot, cuu cong
hoi cac » hoc cac, voi cac, hoa cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu cach thoi dai, nghien cuu mon hoc nganh nong ((thuoc tai) or (thuoc la)) hoi cac nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu cach thoi dai, nghien cuu mon hoc nganh nong ((thuoc tai) OR (thuoc la)) hoi cac nhan van.
• Adding a wildcard symbol may retrieve word variants: thu cach thoi dai, nghien cuu mon hoc nganh nong ((thuoc tai) or (thuoc la)) hoi cac nhan van*.