Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"ton cho minh snippets" » "ton chi minh snippets", "ton cho sinh snippets", "ton cao minh snippets", "toan cho minh snippets", "ton kho minh snippets", "trong cho minh snippets", "ton cho minh 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: (((("ton cho minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ton cho minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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