Perhaps you should try some spelling variations:
"pha anh toan snippets" » "pha anh code snippets", "pha manh toan snippets", "pha anh tuan snippets", "pha thanh toan snippets", "pham anh toan snippets", "phan anh toan snippets", "ha anh toan snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("pha anh toan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("pha anh toan snippets"))) OR ("locating bug core snippets")).
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