Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lua xa dong snippets" » "lua xa code snippets", "lua ha dong snippets", "lua van dong snippets", "lua lao dong snippets", "lua va dong snippets", "luat xay dong snippets", "luan xay dong snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("lua xa dong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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