Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung phu ve snippets" » "dung phan ve snippets", "dung cho ve snippets", "dung he ve snippets", "dung phu va snippets", "dung phu vu 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: (((("dung phu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung phu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung phu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung phu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.