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