Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han ve do snippets" » "hanh ve do snippets", "phan ve do snippets", "hang ve do snippets", "han ve dao snippets", "han ve doi snippets", "han va do 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: (((("han ve 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: (((("han ve do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han ve do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han ve do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.