Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi li cac snippets" » "khoi li code snippets", "khoi ki cac snippets", "phoi loi cac snippets", "khoi lon cac snippets", "khoi li ca snippets", "khoi ly cac snippets", "khoi loi cach 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: (((("khoi li cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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