Perhaps you should try some spelling variations:
"python using real snippets" » "python using metal snippets", "python using raw snippets"
"co dan dot snippets" » "co dan dat snippets", "co da dot snippets", "co dan dong snippets", "co ban dot snippets", "ca dan dot snippets", "cao dang dot 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: "((((\"co dan dot snippets\") OR (\"python using real snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( co dan dot snippets ) OR ( python using real snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("co dan dot snippets") OR ("python using real snippets"))) OR ("locating bug code snippets"))*.