Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua van hang snippets" » "lua van khang snippets", "lua van hoang snippets", "lua van thang snippets", "luan van hang snippets", "luu van hang snippets", "qua van hang snippets"

Try widening your search to All Fields.

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