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