Perhaps you should try some spelling variations:
suc doanh » muc doanh, su doanh, suc manh
doanh hoa » doanh khoa, doanh hoan, danh hoa
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
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
hai van » thai van, ha van, 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((manh hoc) OR (manh hon)) tap, nghien cuu cong suc doanh hoa hoc xa hai van nhan dan~.
• Adding a wildcard symbol may retrieve word variants: tu ((manh hoc) or (manh hon)) tap, nghien cuu cong suc doanh hoa hoc xa hai van nhan dan*.