Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong hoi hoa snippets" » "dong hoc hoa snippets", "dong hoa hoa snippets", "tong hop hoa snippets", "dong hoi khoa snippets", "dong hoi hoc 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: (((("dong hoi hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong hoi hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong hoi hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong hoi hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.