Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"con doi dan slippers" » "co doi dan slippers", "con coi dan slippers", "uon doi dan slippers", "con hoi dan slippers", "con doi ban slippers", "con doi dau slippers", "con doi dan slippery", "con doi dan grippers"

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: (((("con doi dan slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con doi dan slippers") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( con doi dan slippers ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con doi dan slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))*.