Perhaps you should try some spelling variations:
"locating bung code snippets" » "locating bug code snippets", "locating bung code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"cac le xuan snippets" » "cac le quang snippets", "cach le xuan snippets", "cac he xuan snippets", "mac le xuan snippets", "cac le xuan slippers"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("cac le xuan snippets") or ("python using java snippets"))) or ("locating bung code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac le xuan snippets") OR ("python using java snippets"))) OR ("locating bung code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cac le xuan snippets") or ("python using java snippets"))) or ("locating bung code snippets"))*.