Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh he ho snippets" » "trinh he code snippets", "trinh han ho snippets", "trinh hoa ho snippets", "trinh ky ho snippets", "trinh he kho snippets", "trinh hen ho snippets", "trinh che ho 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: (((("trinh he ho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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