Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan dan toc snippets" » "phan dan code snippets", "phan dang toc snippets", "phan dau toc snippets", "nhan dan toc snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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