Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac hoc dung snippets" » "cac hoc ung snippets", "cac hoc dan snippets", "cac hoc cong snippets", "cach hoc dung snippets", "cac hop dung snippets", "bac hoc dung snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("cac hoc dung 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 hoc dung snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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