Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat va cong snippets" » "mat tai cong snippets", "mat cua cong snippets", "dat va cong snippets", "vat va cong snippets", "mat ma cong 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: (((("mat va cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat va cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat va cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat va cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.