Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chu danh hau snippets" » "chuc danh hau snippets", "chu manh hau snippets", "chu dinh hau snippets", "chu danh dau snippets", "chu danh cau snippets", "chu doanh chau snippets", "chu danh 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: (((("chu danh 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: (((("chu danh hau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("chu danh hau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.