Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach mau tao slippers" » "sach dau tao slippers", "sach dao tao slippers", "bach mai tao slippers", "sach cau tao slippers", "sach mau nao slippers", "sach mau giao slippers", "sach mau tao slippery", "sach mau tao grippers"
"locating bug code snippets" » "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: (((("sach mau tao slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach mau tao slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("sach mau tao slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.