Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong che co snippets" » "dong chen co snippets", "duong che co snippets", "dong cho co snippets", "dong cheo co snippets", "dong che do snippets", "dong he co 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 che co 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 che co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong che co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong che co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.