Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"tac cho nhan snippets" » "tac cho phan snippets", "tac cho nha snippets", "tac cho thanh snippets", "tac chon nhan snippets", "dac cho nhan snippets", "tap cho nhan snippets", "tac cho nhan slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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