Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
hoc nhanh » hoc nganh, hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, sach moi, cach thoi
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
hoi tap » hoi dap, hoc tap, hoi tai
hai van » thai van, ha van, hai tan
van tai » von tai, van tuan
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: te sach hoi tap, nghien cuu mo hoc nhanh khong hoc ma hai van ((nhan dan) or (van tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi tap, nghien cuu mo hoc nhanh khong hoc ma hai van ((nhan dan) OR (van tai)).
• Adding a wildcard symbol may retrieve word variants: te sach hoi tap, nghien cuu mo hoc nhanh khong hoc ma hai van ((nhan dan) or (van tai))*.