Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"viet dung ha snippets" » "viet hung ha snippets", "viet huong ha snippets", "viet trung ha snippets", "viet dung va snippets", "viet dung he snippets", "viet dung khoa snippets", "viet dung ha 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: (((("viet dung ha snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet dung ha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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