Perhaps you should try some spelling variations:
thanh hoc » than hoc, thanh ho, thanh phuoc
coc thanh » cuoc thanh, hoc thanh, cac thanh
thanh hoa » thanh pho
tu thanh » thu thanh, su thanh, ta thanh
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
cau phan » chau phan, cuu phan, cao phan
cac phan » cac nhan, cao phan, cap phan
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: tu thanh hoc tap, nghien cuu cong coc thanh hoa hoc xa hoi ((cau phan) OR (cac phan)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu thanh hoc tap, nghien cuu cong coc thanh hoa hoc xa hoi ((cau phan) OR (cac phan)) van".
• Adding a wildcard symbol may retrieve word variants: tu thanh hoc tap, nghien cuu cong coc thanh hoa hoc xa hoi ((cau phan) OR (cac phan)) van*.