Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cach hoc khi snippets" » "cach thuc khi snippets", "cach thoi khi snippets", "dich hoc khi snippets", "cach hoc khoi snippets", "cach hoc khia snippets", "cach hoc ki snippets", "cach hoc khi 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: (((("cach hoc khi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach hoc khi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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