Perhaps you should try some spelling variations:
allocation problems » allocation problem (Expand search), location problems (Expand search), location problem (Expand search)
width allocation » with allocation (Expand search), switch allocation (Expand search), berth allocation (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder coder » coder decoder (Expand search), code code (Expand search), decoder codec (Expand search)
coder width » encoder with (Expand search)
in python » _ python (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder coder width allocation problems ) OR ( in python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder coder width allocation problems ) OR ( in python python python programming ))*.