Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoi cao anh slippers" » "duoi ca anh slippers", "nguoi cao anh slippers", "duong cao anh slippers", "duoi cao dang slippers", "duoi cao tang slippers", "duoi cao bang slippers", "duoi cao anh slippery", "duoi cao anh grippers"
"locating bug code snippets" » "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: (((("python using java snippets") or ("duoi cao anh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duoi cao anh slippers"))) OR ("locating bug code snippets")).
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