Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan duoc 9 snippets" » "nhan cuoc 9 snippets", "nhan quoc 9 snippets", "phan duoc 9 snippets", "nhan duoc 1 snippets", "nhan duoc 2 snippets"
"python using sat snippets" » "python using data snippets", "python using a snippets", "python using raw snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("nhan duoc 9 snippets") or ("python using sat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan duoc 9 snippets") OR ("python using sat snippets"))) OR ("locating bug core snippets")).
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