Perhaps you should try some spelling variations:
"creating a sub snippets" » "creating _ sub snippets", "reading a sub snippets", "creating a sub slippers"
"leading _ code snippets" » "learning _ code snippets", "leading _ core snippets", "leading _ code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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: "((((\"leading _ code snippets\") OR (\"creating a sub snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( leading _ code snippets ) OR ( creating a sub snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("leading _ code snippets") OR ("creating a sub snippets"))) OR ("locating bug code snippets"))*.