Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co don don snippets" » "co don den snippets", "co hon don snippets", "co dan dong snippets", "co dong don snippets", "co dan don snippets", "co dot don snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("co don don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co don don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co don don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co don don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.