Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cac san xuan snippets" » "cac san xuat snippets", "cac san luan snippets", "cac san quan snippets", "cac dan xuan snippets", "cac van xuan snippets", "cac ban xuan snippets", "cac san xuan 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: (((("cac san xuan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac san xuan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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