Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran cac dan slippers" » "tranh cac dan slippers", "tran chau dan slippers", "tran mach dan slippers", "tran cac dan slippery", "tran cac 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: (((("tran cac 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: (((("tran cac dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran cac dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran cac dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.