Perhaps you should try some spelling variations:
nganh khung » nganh khong, nhanh hung
nghien cua » nghien cuu, nghiep cua, nghiep vua
coc nganh » hoc nganh, cac nganh, chuc nganh
khung hoc » chung hoc, nhung hoc, thuong hoc
hoc sach » hoc sinh, hoc cac, hoc anh
cong coc » cong cuoc, cong cac, cong co
van phan » van phong, van thanh, luan phan
phan van » pham van, thanh van, luan van
tu sach » thu sach, su sach, te sach
hoi van » hoi va, hoi dan, hai van
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: ((tu sach) or (hoc sach)) hoc tap, nghien cua cong coc nganh khung hoc xa hoi van phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (hoc sach)) hoc tap, nghien cua cong coc nganh khung hoc xa hoi van phan van.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (hoc sach)) hoc tap, nghien cua cong coc nganh khung hoc xa hoi van phan van*.