Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ban toan ho snippets" » "ban toan code snippets", "bai toan ho snippets", "ban than ho snippets", "van toan ho snippets", "ban toan hoc snippets", "ban toan khoa snippets", "ban toan cao 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: (((("python using java snippets") or ("ban toan ho snippets"))) or ("locating bug core snippets"))~.
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