Perhaps you should try some spelling variations:
competence programming » competitive programming (Expand search), computer programming (Expand search), computers programming (Expand search)
vector competence » motor competence (Expand search)
pathogen vector » pathogen vectors (Expand search)
oral pathogen » oral pathogens (Expand search), oral pathogenic (Expand search), viral pathogen (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using codigo » using indigo (Expand search), using coding (Expand search), using codium (Expand search)

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

• Removing quotes may allow a broader search: (( oral pathogen vector competence programming ) OR ( using codigo python python programming ))~.