Perhaps you should try some spelling variations:
hoc nhanh » hoc phan
sach toi » sach doi, sach hoi, sach moi
cuu cong » cua cong, thu cong, cac cong
cua phan » cua nhan, cua phap, cua han
phan van » pham van, thanh van, luan van
su sach » so sach, vu sach
toi gap » toi tap, toi gian
hoi cua » hoi chuc
hoc xa » hoc ma

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 toi gap, nghien cuu cong ((hoc nganh) or (hoc nhanh)) hoa hoc xa hoi cua phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach toi gap, nghien cuu cong ((hoc nganh) OR (hoc nhanh)) hoa hoc xa hoi cua phan van.
• Adding a wildcard symbol may retrieve word variants: su sach toi gap, nghien cuu cong ((hoc nganh) or (hoc nhanh)) hoa hoc xa hoi cua phan van*.