Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khen ca tap snippets" » "khien cau tap snippets", "khan cap tap snippets", "when can tap snippets", "khen cua tap snippets", "khen cac tap snippets", "khen va tap snippets", "khen ca tap 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: (((("khen ca tap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khen ca tap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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