Perhaps you should try some spelling variations:
"python using real snippets" » "python using metal snippets", "python using raw snippets"
"hoc su cong snippets" » "hoc su cuong snippets", "hoc sua cong snippets", "hoc tu cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: "((((\"hoc su cong snippets\") OR (\"python using real snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( hoc su cong snippets ) OR ( python using real snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc su cong snippets") OR ("python using real snippets"))) OR ("locating bug code snippets"))*.