Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dap dai han snippets" » "dat dai han snippets", "tap dai han snippets", "dap bai han snippets", "dap dai phan snippets", "dap dai nhan snippets", "dap dai hanh snippets", "dap dai han 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: (((("dap dai han snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dap dai han snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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