Perhaps you should try some spelling variations:
"phi cong code snippets" » "phi cong cong snippets", "phi cong co snippets", "phi cong che snippets", "thi cong code snippets", "phan cong code snippets", "pham cong code snippets", "phi cong code slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("phi cong code snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi cong code snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi cong code snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi cong code snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.