Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"quan gat lua snippets" » "quan sat lua snippets", "quan ngan lua snippets", "quan ha lua snippets", "quan dat luan snippets", "quan chat lua snippets", "quan xuat lua snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("quan gat lua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan gat lua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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