Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"thuoc cuu ma snippets" » "thuoc cuc ma snippets", "thuc cua ma snippets", "thuoc co ma snippets", "thuoc cuu va snippets", "thuoc cuu da snippets", "thuoc cuu ha snippets", "thuoc cuu ma 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: (((("thuoc cuu ma snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc cuu ma snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc cuu ma snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc cuu ma snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.