Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"o trinh phuc snippets" » "o trinh thuc snippets", "o vinh phuc snippets", "o trinh phan snippets", "co trinh phuc snippets", "o tinh phuc snippets", "n trinh phuc snippets", "o trinh phuc 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: (((("o trinh phuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("o trinh phuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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