Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van than cho snippets" » "van than code snippets", "van thanh cho snippets", "van thang cho snippets", "van tuan cho snippets", "van han cho snippets", "van toan cho snippets", "van chan cho 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: (((("van than cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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