Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi son tang snippets" » "phi son tung snippets", "phi son thanh snippets", "phi nen tang snippets", "phi san tang snippets", "pho son tang snippets", "thi son tang snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("phi son tang snippets"))) or ("locating bug core snippets"))~.
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