Perhaps you should try some spelling variations:
developing microformats » developing microsoft, developing bioinformatics, developing microcomputer
functions definitions » function definitions, functional definition, definitions definitions
programmes developing » programme developing, programs developing, programming developing
function definition » function definitions, functional definition, stiction definition
microformats https » microarrays https, microformat hatom, microformats what

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((function definition) OR (functions definitions)) programmes developing microformats https~".
• Adding a wildcard symbol may retrieve word variants: ((function definition) OR (functions definitions)) programmes developing microformats https*.