Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac duc phan snippets" » "cac dung phan snippets", "cac duc thang snippets", "cac duc phung snippets", "cac du phan snippets", "cac dac phan snippets", "cao duc phan snippets"

Try widening your search to All Fields.

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