Perhaps you should try some spelling variations:
interface purification » interface specification, interface specifications, interfaces specification
programs developing » program development, process developing, programme development
projects developing » aspects developing
microformats https » microarrays https, microformat hatom, microformats what

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: "interface purification ((programs developing) OR (projects developing)) microformats https~".
• Adding a wildcard symbol may retrieve word variants: interface purification ((programs developing) OR (projects developing)) microformats https*.