Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
thanh hoa » thanh pho
thu bach » thi bach, thu sach, thu hoach
cac cong » cua cong
co thanh » cho thanh, o thanh, co tranh
cuu nhan » cu nhan, cua nhan, cuu thanh
cong co » dong co, cong cu, cong so
uu phan » cuu phan, su phan, cuu phat
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: thu bach mai tat, nghien cac cong co thanh hoa hoc xa hoi ((uu phan) or (cuu nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu bach mai tat, nghien cac cong co thanh hoa hoc xa hoi ((uu phan) OR (cuu nhan)) van.
• Adding a wildcard symbol may retrieve word variants: thu bach mai tat, nghien cac cong co thanh hoa hoc xa hoi ((uu phan) or (cuu nhan)) van*.