Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tro cho sinh snippets" » "tro choi sinh snippets", "tao cho sinh snippets", "tra cho sinh snippets", "tro cho dinh snippets", "tro cho minh snippets", "tro cho kinh snippets", "tro cho sinh 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: (((("tro cho sinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro cho sinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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