Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"den tac dau snippets" » "den cac dau snippets", "den xac dau snippets", "len tac dau snippets", "den tac da snippets", "den tac dao snippets", "den thau dau snippets", "den tac dau 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: (((("den tac dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den tac dau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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