Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"moi doi minh snippets" » "moi do minh snippets", "moi doi dinh snippets", "moi doi kinh snippets", "voi doi minh snippets", "hoi doi minh snippets", "moi voi minh snippets", "moi doi minh slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("moi doi minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi doi minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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