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