Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thap nu doc snippets" » "thap du doc snippets", "thap su doc snippets", "phap ngu doc snippets", "thap n1 doc snippets", "thap n2 doc snippets", "thap n3 doc 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: (((("thap nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thap nu doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thap nu doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thap nu doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.