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