Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi cong do snippets" » "doi song do snippets", "noi cong do snippets", "moi cong do snippets", "doi cong dot snippets", "doi cuong do snippets", "doi cong so 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: (((("doi cong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi cong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi cong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi cong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.