Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra va vo snippets" » "ra va vo snippets", "tra ha vo snippets", "tran van vo snippets", "tra va co snippets", "tra va do snippets", "tra va mo 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: (((("tra va vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra va vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra va vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra va vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.