Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoa tac dam snippets" » "khoa tai dam snippets", "khoa tap dam snippets", "khoa sach dam snippets", "khoa tac da snippets", "khoa tac dao snippets", "khoa tac dau snippets", "khoa tac dam 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 tac dam snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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