Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so than he snippets" » "so phan he snippets", "so thao he snippets", "so tan he snippets", "so toan he snippets", "so than ha snippets", "so thanh hue 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: (((("so than he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("so than he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so than he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so than he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.