Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac hat dung snippets" » "cac vat dung snippets", "cac dat dung snippets", "cac hai dung snippets", "cac chat dung snippets", "cac hoat dung snippets", "cau hat dung snippets"

Try widening your search to All Fields.

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