Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van soa con snippets" » "van soa code snippets", "van hoa con snippets", "van son con snippets", "van khoa con snippets", "van so con snippets", "van hoa cong snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using data snippets") or ("van soa con snippets"))) or ("locating bug core snippets"))~.
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