Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc nganh » hoc nhanh
khung hoc » chung hoc, nhung hoc, thuong hoc
thong hoc » thuong hoc, tuong hoc, thong hoa
van thanh » ban thanh, van tuan
sach hoi » sach doi, sach moi, cach thoi
su sach » so sach, vu sach
hoi tap » hoi dap, hoc tap, hoi tai
hai van » thai van, ha van, hai tan
cua mo » cua mot, cua moi, cua bo
mo hoc » mon hoc, co hoc
ma hai » ta hai, va hai, xa hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach hoi tap, nghien cua mo hoc nganh ((khung hoc) or (thong hoc)) ma hai van thanh san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoi tap, nghien cua mo hoc nganh ((khung hoc) OR (thong hoc)) ma hai van thanh san.
• Adding a wildcard symbol may retrieve word variants: su sach hoi tap, nghien cua mo hoc nganh ((khung hoc) or (thong hoc)) ma hai van thanh san*.