Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi thoi anh slippers" » "doi thoai anh slippers", "moi thoi anh slippers", "do thoi anh slippers", "doi thi anh slippers", "doi thoi dinh slippers", "doi thoi minh slippers", "doi thoi anh slippery", "doi thoi anh 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: (((("doi thoi anh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi thoi anh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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