init()

projects_matching = []

# Find each project that matches the search criteria in the choosen fields
for project in projects:
    if search_fields:
        for field in search_fields:
            if search in project[field]:
                projects_matching.append(project)

# Get rid of the projects that doesn't match the given techniques
for project in projects_matching:
    if techniques:
        for technique in techniques:
            if technique not in project['techniques_used'].lower():
                projects_matching.remove(project)

# Do sorting...

return (works_ok, projects_matching)