Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thpt lam ma snippets" » "thpt ham ma snippets", "thpt nam ma snippets", "thpt dan ma snippets", "thpt lam mat snippets", "thpt lam ha snippets", "thpt am ma snippets", "thpt lam ma 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: (((("thpt lam ma snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thpt lam ma snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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