Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thu nhat ap snippets" » "thu nhap ap snippets", "thu thuat ap snippets", "thu ha ap snippets", "thu nhat ban snippets", "thu nhat anh snippets", "thu nhat tan snippets", "thu nhat ap 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: (((("thu nhat ap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu nhat ap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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