Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"trao hoc khi snippets" » "thao hoc khi snippets", "trac hoc khi snippets", "trao ho khi snippets", "trao hoc khoi snippets", "trao hoc khia snippets", "trao hoc ki snippets", "trao 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: (((("trao 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: (((("trao hoc khi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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