Perhaps you should try some spelling variations:
"python using java grippers" » "python using data grippers", "python using java slippers"
"cac phan van slippery" » "cac nhan van slippery", "cao phan van slippery", "cap phan van slippery", "cac pham van slippery", "cac thanh van slippery", "cac luan van slippery", "cac phan van slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets", "locating bug code slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("cac phan van slippery") or ("python using java grippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac phan van slippery") OR ("python using java grippers"))) OR ("locating bug code snippets")).
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