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