Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tran toan va snippets" » "tranh toan va snippets", "tran tuan va snippets", "tran tan va snippets", "tran doan va snippets", "tran tran van snippets", "tran 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 ("tran 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 ("tran toan va snippets"))) OR ("locating bug core snippets")).
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