Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua va trung snippets" » "lua ba trung snippets", "lua ha trung snippets", "lua va thuong snippets", "luan va trung snippets", "luat va trung snippets", "vua va trung snippets"

Try widening your search to All Fields.

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