Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
cong thuoc » cong thuc, dong thuoc, long thuoc
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
sach hoi » sach doi, sach moi, hoach hoi
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc xa » thuoc ma, thuoc va, thuoc la
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
hoi van » hoi va, hoi dan, hai van

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