Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan danh va slippers" » "luan thanh va slippers", "luan van va slippers", "luan nang va slippers", "luan doanh va slippers", "luan hanh va slippers", "luan anh va slippers", "luan danh va slippery", "luan danh va grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("luan danh va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan danh va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("luan danh va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.