Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong hoi hoi snippets" » "dong hoc hoi snippets", "dong hoa hoi snippets", "tong hop hoi snippets", "dong hoi hoc snippets", "dong hoi doi 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 hoi 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 hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong hoi hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong hoi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.