Perhaps you should try some spelling variations:
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets", "python using raw slippers"
"thi sinh sio2 snippets" » "thi sinh sinh snippets", "thi sic sio2 snippets", "thi sinh so snippets", "thai sinh sio2 snippets", "thi minh sio2 snippets", "thi hinh sio2 snippets", "thi sinh sio2 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: (((("thi sinh sio2 snippets") or ("python using raw snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi sinh sio2 snippets") OR ("python using raw snippets"))) OR ("locating bug code snippets")).
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