Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tang toan va snippets" » "dang toan va snippets", "tang tan va snippets", "thanh toan va snippets", "tang doan va snippets", "tang tran van snippets", "tang toan ban 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 ("tang toan va snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tang toan va snippets"))) OR ("locating bug core snippets")).
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