Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dau thuc cua snippets" » "dau thuc code snippets", "dan thuc cua snippets", "dai thuc cua snippets", "dam thuc cua snippets", "dau hoc cua snippets", "dau thuc va 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: (((("dau thuc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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