Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoc cau ming snippets" » "hoc cau tieng snippets", "hoc cao minh snippets", "hoc cau cong snippets", "hoc cao ming snippets", "hoc cac ming snippets", "hoc can ming snippets", "hoc cau ming 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: (((("hoc cau ming snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cau ming snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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