Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hang doi duc snippets" » "hang di duc snippets", "hang loi duc snippets", "huong doi duc snippets", "hang do duc snippets", "hang doi duy snippets", "hang oi duc snippets", "hang doi 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: (((("hang doi duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang doi duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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