Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong thuoc » cong thuc, dong thuoc, long thuoc
sach doi » sach hoi, sach moi, sach dao
cuu dong » cuu cong, cuu tong, cuu long
co nganh » hoc nganh, cac nganh, moi nganh
thuoc xa » thuoc ma, thuoc va, thuoc la
van nhan » van thanh, danh nhan, van khanh
van phan » van phong, van thanh, luan phan
te sach » toc sach
doi dap » hoi dap, doi dau, do dap

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 doi dap, nghien cuu dong co nganh cong thuoc xa hoi ((van nhan) or (van phan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach doi dap, nghien cuu dong co nganh cong thuoc xa hoi ((van nhan) OR (van phan)) van.
• Adding a wildcard symbol may retrieve word variants: te sach doi dap, nghien cuu dong co nganh cong thuoc xa hoi ((van nhan) or (van phan)) van*.