Perhaps you should try some spelling variations:
hoc nhanh » hoc phan
sach hoi » sach doi, sach moi, cach thoi
van nhan » van phan, van thanh, danh nhan
te sach » toc sach
hoi tap » hoi dap, hoc tap, hoi tai
cuu mon » cuu mo, cuu mot, cuu cong
hoa van » hoa dan, hoang van, hoa phan
nhan va » nhan tai, nhan dan, nhan tao

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 mon ((hoc nganh) or (hoc nhanh)) hoa hoc ma hoa van nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi tap, nghien cuu mon ((hoc nganh) OR (hoc nhanh)) hoa hoc ma hoa van nhan va.
• Adding a wildcard symbol may retrieve word variants: te sach hoi tap, nghien cuu mon ((hoc nganh) or (hoc nhanh)) hoa hoc ma hoa van nhan va*.