Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khan cao van slippers" » "khan cap van slippers", "khau cao van slippers", "khoan cam van slippers", "khan cac van slippers", "khan dao van slippers", "khan cao dang slippers", "khan cao van slippery", "khan cao van 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: (((("khan cao van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khan cao van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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