Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vung ven dan slippers" » "vung gen dan slippers", "vung van dan slippers", "vung bien dan slippers", "vung nen dan slippers", "vung ve dan slippers", "vung ven dan slippery", "vung ven dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vung ven dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vung ven dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vung ven dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vung ven dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.