Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh hoa den snippets" » "dinh khoa den snippets", "minh hoa den snippets", "tinh hoa den snippets", "dinh hoa dien snippets", "dinh hoat den snippets", "dinh hoa dan 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: (((("dinh hoa 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: (((("dinh hoa den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh hoa den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh hoa den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.