Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tu cong tre snippets" » "tu cong tren snippets", "tu dong tren snippets", "tu cong them snippets", "thu cong tre snippets", "te cong tre snippets", "tai cong tre snippets"
"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: (((("tu cong tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tu cong tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tu cong tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu cong tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.