1.   Bitter scientific disputes soon developed.

2.   Exactly when the Gingrich case will come to a close has become a matter of bitter dispute.

3.   It caused a bitter dispute between the neighbouring republics.

4.   It is now the subject of a bitter dispute between the neighbouring republics.

5.   The biggest gains and the most bitter disputes arise over trades between north and south.

6.   The bill has bogged down in bitter disputes over the balance between law enforcement and civil liberties.

7.   Workers and management are locked in a bitter dispute.

8.   Bitter disputes between political parties have bogged the bill down in Congress.

9.   The opposition has been fractured by bitter disputes.

10.   A bitter dispute has erupted among the members of the team.