Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"che hoang ha snippets" » "le hoang ha snippets", "che hoat ha snippets", "thi hoang ha snippets", "che hoang hai snippets", "che hong ha snippets", "che hoang nham snippets", "che hoang 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: (((("che hoang 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: (((("che hoang ha snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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