Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trua cua phi slippers" » "tru cua phi slippers", "trung cua phi slippers", "qua cua phi slippers", "trua cua chi slippers", "trua cua phu slippers", "trua chau phi slippers", "trua cua phi slippery", "trua cua phi grippers"
"locating bug code snippets" » "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: (((("trua cua phi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trua cua phi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trua cua phi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trua cua phi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.