Display Screen or Portion Thereof with Graphical User Interface

FIG. 1 shows a perspective view of a display screen or portion thereof with graphical user interface showing our new design;

FIG. 2 shows a front view thereof;

FIG. 3 shows a back view thereof;

FIG. 4 shows a right side elevational view thereof;

FIG. 5 shows a left side elevational view thereof;

FIG. 6 shows a bottom elevational view thereof; and,

FIG. 7 shows a top elevational view thereof.

The broken lines showing a display screen or portion thereof forms no part of the claimed design. The broken lines showing portions of the graphical user interface in FIGS. 1 and 2 form no part of the claimed design.