Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"huu san cua snippets" » "huu san code snippets", "huu han cua snippets", "cuu san cua snippets", "huu son cua snippets", "huu sang cua snippets", "huu ban cua snippets", "huu dan cua 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: (((("huu san cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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