Perhaps you should try some spelling variations:
"trinh ban sio2 snippets" » "trinh han sio2 snippets", "trinh van sio2 snippets", "trinh san sio2 snippets", "trinh bao sio2 snippets", "trinh cao sio2 snippets", "trinh ban sio2 slippers"
"python using a snippets" » "python using a 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: (((("trinh ban sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh ban sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("trinh ban sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.