Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh va ho snippets" » "trinh va code snippets", "trinh van ho snippets", "trinh vat ho snippets", "trinh ve ho snippets", "trinh va hoc snippets", "trinh va hoa snippets", "trinh va hoi 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 va ho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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