Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
cac nhan » ca nhan, cac nha, cam nhan
te sach » toc sach
su sach » so sach, vu sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi cac » hoc cac, voi cac, hoa cac
nhan va » nhan tai, nhan dan, nhan tao
ma hoi » mai hoi, xa hoi, ma hoa

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) or (su sach)) hoi dap, nghien cuu mon hoc nganh khoa hoc ma hoi cac nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) hoi dap, nghien cuu mon hoc nganh khoa hoc ma hoi cac nhan va.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) hoi dap, nghien cuu mon hoc nganh khoa hoc ma hoi cac nhan va*.