Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung ho do snippets" » "dung cho do snippets", "dung hoc do snippets", "dung he do snippets", "dung how do snippets", "dung ho doi 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 ho do 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 ho do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ho do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ho do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.