Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"toan duc tao snippets" » "tran duc tao snippets", "toan du tao snippets", "ton duc tao snippets", "toan duc tan snippets", "toan duc tho snippets", "toan duc dao snippets", "toan duc 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: (((("toan duc tao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan duc tao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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