Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
tuan pham » thanh pham, san pham, tac pham
cuu tong » cuu cong, cuu tinh, huu tung
tong hoc » tuong hoc, thong hoc, trong hoc
khoa hoc » hoa hoc
hai tuan » khai tuan, hai quan, hai tan
su sach » so sach, vu sach
hoi tap » hoc tap, hoi tai, hai tap
hoc xua » hoc cua, hoc xa, hoc lua
xua hai » qua hai, cua hai, xa hai

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 ((hoi tap) or (hoi dap)), nghien cuu tong hoc nhanh khoa hoc xua hai tuan pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((hoi tap) OR (hoi dap)), nghien cuu tong hoc nhanh khoa hoc xua hai tuan pham van.
• Adding a wildcard symbol may retrieve word variants: su sach ((hoi tap) or (hoi dap)), nghien cuu tong hoc nhanh khoa hoc xua hai tuan pham van*.