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