Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan so dung snippets" » "phan bo dung snippets", "phan co dung snippets", "phap so dung snippets", "phan su dung snippets", "phan hoc dung snippets", "phan noi dung snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phan 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: (((("phan so dung snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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