Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug code slippers", "lochating bug core snippets"
"python using java snippets" » "python using data snippets", "python using java slippers"
"den cac tru snippets" » "dien cac tru snippets", "dan cac tru snippets", "de cac tru snippets", "den ca tru snippets", "den cac tro snippets", "den cac thu snippets", "den cac tru slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("den cac tru snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den cac tru snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("den cac tru snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))*.