Perhaps you should try some spelling variations:
"nham mat code snippets" » "ham mat code snippets", "cham mat code snippets", "nha may code snippets", "nham rate code snippets", "nham mat co snippets", "nham mat 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: (((("nham mat 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: (((("nham mat code snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("nham mat code snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.