Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tan hoc hanh snippets" » "tan hoc nhanh snippets", "tan hoc thanh snippets", "tan hoc anh snippets", "toan hoc hanh snippets", "than hoc hanh snippets", "van hoc hanh snippets", "tan hoc hanh 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: (((("tan hoc hanh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan hoc hanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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