Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"tran so dung snippets" » "tran si dung snippets", "tran sy dung snippets", "than so dung snippets", "tran su dung snippets", "tran hoc dung snippets", "tran noi dung snippets"

Try widening your search to All Fields.

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