Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tra linh duc snippets" » "tran dinh duc snippets", "tran minh duc snippets", "tran vinh duc snippets", "tra minh duc snippets", "tra dinh duc snippets", "tra ninh duc snippets", "tra linh duc slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("tra linh duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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