Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den dong che snippets" » "dien dong che snippets", "dan dong che snippets", "de dong che snippets", "den dong chen snippets", "den duong che snippets", "den dong cho 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: (((("den dong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den dong che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den dong che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den dong che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.