Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan chon xu snippets" » "lua chon xu snippets", "luan chinh xu snippets", "luan chung xu snippets", "luan chon tu snippets", "luan choi xu snippets", "luan thong xu snippets", "luan chon xu 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: (((("luan chon xu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan chon xu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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