Perhaps you should try some spelling variations:
khoi nganh » hoc nganh, moi nganh
nganh nang » nganh nong, ganh nang, ngan hang
cong khoi » cong khi, cong nhoi, tong khoi
sach hoi » sach moi, cach thoi, hoach hoi
sach doi » sach moi, sach dao, sach bai
cuu cong » cua cong, thu cong, cac cong
nang hoc » nang doc, nang luc, dong hoc
gian dan » gian lang
hoi dan » hoa dan, hoc dan, hoi dap
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: thu ((sach hoi) OR (sach doi)) tap, nghien cuu cong khoi nganh nang hoc xa hoi dan gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach hoi) OR (sach doi)) tap, nghien cuu cong khoi nganh nang hoc xa hoi dan gian dan".
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoi) OR (sach doi)) tap, nghien cuu cong khoi nganh nang hoc xa hoi dan gian dan*.