Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
tu sach » thu sach, su sach, te sach
hoi tap » hoc tap, hoi tai, hai tap
hoc xa » hoc ma
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: tu sach ((hoi tap) or (hoi dap)), nghien cuu cong hoc nhanh khoa hoc xa hoi ca nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((hoi tap) OR (hoi dap)), nghien cuu cong hoc nhanh khoa hoc xa hoi ca nhan tai.
• Adding a wildcard symbol may retrieve word variants: tu sach ((hoi tap) or (hoi dap)), nghien cuu cong hoc nhanh khoa hoc xa hoi ca nhan tai*.