Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan ven tre snippets" » "dan vien tre snippets", "dan den tre snippets", "dan ve tre snippets", "dan ben tre snippets", "dan vien tren snippets", "dan benh 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: (((("dan ven 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: (((("dan ven tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan ven tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan ven tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.