Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"long ninh le snippets" » "long ninh code snippets", "luong ninh le snippets", "dong ninh le snippets", "long tinh le snippets", "long dinh le snippets", "long vinh le snippets", "long thinh le 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: (((("long ninh le snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long ninh le snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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