Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doan va do snippets" » "doan va code snippets", "doan va dao snippets", "doan va doc snippets", "doan va co snippets", "doanh va do snippets", "dan va do snippets", "toan va do snippets"
"python using java snippets" » "python using data 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: (((("doan va do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan va do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doan va do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan va do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.