Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc ban cau snippets" » "toc ban code snippets", "toc san cau snippets", "toc ba cau snippets", "hoc ban cau snippets", "toc bang cau snippets", "toc ban can snippets", "toc van cau 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: (((("toc ban cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc ban cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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