Perhaps you should try some spelling variations:
ngan khoa » nganh khoa, nhan khoa, nhuan khoa
manh hoc » anh hoc, manh ho, danh hoc
manh hon » manh ho, minh hon, manh huong
cuu cong » cua cong, thu cong, cac cong
cong suc » cong thuc, cong suat, cong chuc
suc ngan » luc ngan, luc nganh, sach ngan
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
va nhan » van nhan, ca nhan, va 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 ((manh hoc) or (manh hon)) tap, nghien cuu cong suc ngan khoa hoc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((manh hoc) OR (manh hon)) tap, nghien cuu cong suc ngan khoa hoc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: tu ((manh hoc) or (manh hon)) tap, nghien cuu cong suc ngan khoa hoc xa hoi va nhan dan*.