Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
cach thoi » cac thoi, cach thuc, cach noi
hoc nhanh » hoc nganh, hoc phan
tuan pham » thanh pham, san pham, tac pham
sach hoi » sach doi, sach moi, hoach hoi
cuu long » cuu cong, cuu tong, cuu nang
long hoc » dong hoc, long soc, long thuoc
khoa hoc » hoa hoc
hai tuan » khai tuan, hai quan, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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) OR (cach thoi)) tap, nghien cuu long hoc nhanh khoa hoc xa hai tuan pham van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach hoi) OR (cach thoi)) tap, nghien cuu long hoc nhanh khoa hoc xa hai tuan pham van".
• Adding a wildcard symbol may retrieve word variants: su ((sach hoi) OR (cach thoi)) tap, nghien cuu long hoc nhanh khoa hoc xa hai tuan pham van*.