Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sat thuoc do snippets" » "sat thuc do snippets", "xuat thuoc do snippets", "suat truoc do snippets", "sat thuoc bo snippets", "sat thuoc ho snippets", "sat thuoc co 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: (((("sat thuoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sat thuoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("sat thuoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.