Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa ban ham snippets" » "khoa bai ham snippets", "khoa can ham snippets", "khoe ban ham snippets", "khoa ba ham snippets", "khoa ban hang snippets", "khoa ban hanh snippets", "khoa ban ham 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: (((("khoa ban ham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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