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