Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong von hon snippets" » "dung von hon snippets", "dong co hon snippets", "dong hoc hon snippets", "dong von khoa snippets", "dong con hong snippets", "dong cong hon 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 von hon 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 von hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong von hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong von hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.