Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ban hai thu snippets" » "ban thai thu snippets", "bang hai thu snippets", "van hai thu snippets", "ban hoai thu snippets", "ban hai thuy snippets", "ban phai thu snippets", "ban hai thu 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: (((("ban hai thu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban hai thu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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