Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lan hoc hanh snippets" » "lan hoc nhanh snippets", "lan hoc thanh snippets", "lan hoc anh snippets", "luan hoc hanh snippets", "van hoc hanh snippets", "dan hoc hanh snippets", "lan 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: (((("lan 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: (((("lan hoc hanh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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