Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua moi trac slippers" » "dua hoi trac slippers", "dua roi rac slippers", "dua thi trac slippers", "cua moi trac slippers", "dua voi trac slippers", "vua moi trac slippers", "dua moi trac slippery", "dua moi trac 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: (((("dua moi trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua moi trac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua moi trac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua moi trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.