Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tre co tranh snippets" » "tre co thanh snippets", "tre co trach snippets", "tre co trinh snippets", "tren co tranh snippets", "tre so tranh snippets", "te co tranh snippets", "tre co tranh 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: (((("tre co tranh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tre co tranh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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