Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tin hoa tinh snippets" » "tin hoa sinh snippets", "tin hoa binh snippets", "tin ha tinh snippets", "tien hoa tinh snippets", "tinh hoa tinh snippets", "tin khoa tinh snippets", "tin hoa tinh 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: (((("tin hoa tinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tin hoa tinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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