Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac cua chi snippets" » "cac cua code snippets", "cach cua chi snippets", "cac qua chi snippets", "ca cua chi snippets", "cac cua chu snippets", "cac ca chi snippets", "cac cua cha 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: (((("cac cua chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac cua chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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