Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho cam cho snippets" » "pho tam cho snippets", "pho nam cho snippets", "pho cap cho snippets", "pho cao cho snippets", "pho cay cho 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: (((("pho cam cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho cam cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("pho cam cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.