Perhaps you should try some spelling variations:
nhanh dong » hanh dong, nhanh chong, anh dong
thu sach » tu sach, thuat sach, thuoc sach
sach hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
co nhanh » co thanh, co hanh, co phanh
dong hoc » dong luc
phan van » pham van, thanh van, luan van
nhan tao » nhan tai, nhan dan
hoi tap » hoi dap, hoc tap, hoi tai
hoa van » hoa dan, hoang van, hoa phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoi tap, nghien cuu dong co nhanh dong hoc ma hoa van ((phan van) or (nhan tao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoi tap, nghien cuu dong co nhanh dong hoc ma hoa van ((phan van) OR (nhan tao)).
• Adding a wildcard symbol may retrieve word variants: thu sach hoi tap, nghien cuu dong co nhanh dong hoc ma hoa van ((phan van) or (nhan tao))*.