Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi quy long snippets" » "doi huy luong snippets", "doi quan long snippets", "doi cuu long snippets", "dot quy long snippets", "doi duy long snippets", "noi quy long 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: (((("doi quy long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi quy long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi quy long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi quy long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.