Perhaps you should try some spelling variations:
pathogen vector » pathogen vectors (Expand search)
vector computer » vector computers (Expand search), reactors computer (Expand search), vector competent (Expand search)
coupling python » coupling protein (Expand search)
using coupling » running coupling (Expand search), using competing (Expand search), using coupled (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
in pathogen » in pathogens (Expand search), on pathogen (Expand search), in pathogenic (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: "(( in pathogen vector computer program ) OR ( using coupling python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( in pathogen vector computer program ) OR ( using coupling python python programming ))*.