Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"can hoc can snippets" » "van hoc can snippets", "dan hoc can snippets", "cao hoc can snippets", "can hoc dan snippets", "can hoc cao snippets", "can hoc cac snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("can hoc can snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can hoc can snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
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