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