Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua dung tru snippets" » "qua dung tru snippets", "luan hung tru snippets", "qua duong tru snippets", "lua dung tri snippets", "lua dung thu snippets", "lua dung tu snippets"

Try widening your search to All Fields.

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