Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc bat dong snippets" » "toc bat code snippets", "toc hoat dong snippets", "toc ha dong snippets", "toc van dong snippets", "toc ba dong snippets", "thuoc bat dong snippets", "duoc bat dong snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("toc bat dong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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