Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tao hoa snippets" » "doi tac hoa snippets", "doi tai hoa snippets", "doi tan hoa snippets", "doi bao hoa snippets", "doi tao hoi snippets", "doi tao ho 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 tao hoa 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 tao hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tao hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tao hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.