Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"von ngan tao snippets" » "toan ngan tao snippets", "vu ngan tao snippets", "von luan tao snippets", "von nhan tao snippets", "von nganh tai snippets", "von ngang tho snippets", "von ngan tao 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: (((("von ngan tao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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