Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac toc quan snippets" » "cac tac quan snippets", "cac hoc quan snippets", "cac toc qua snippets", "cac toi quan snippets", "cac nuoc quan snippets", "cac thoi quan snippets"

Try widening your search to All Fields.

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