Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thu thi hau snippets" » "thuc thi hau snippets", "thu thai hau snippets", "thuy thi hau snippets", "thu thi hai snippets", "thu thi ha snippets", "thu khi hau snippets", "thu thi hau 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: (((("thu thi hau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu thi hau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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