Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
sach hoi » sach doi, sach moi, cach thoi
thuoc va » thuoc ma, thuong va, thuoc tai
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
mo hoc » mon hoc, co hoc
hoi ca » hoi cua, hoi cac, hoi cau

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 trac, nghien cuu mo hoc nhanh chong ((thuoc va) or (thuc va)) hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi trac, nghien cuu mo hoc nhanh chong ((thuoc va) OR (thuc va)) hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: te sach hoi trac, nghien cuu mo hoc nhanh chong ((thuoc va) or (thuc va)) hoi ca nhan dan*.