Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi hoat con snippets" » "toi hoat con snippets", "doi hoa con snippets", "doi hoac con snippets", "doi hoat dong snippets", "doi hoa co snippets", "doi hoa cong 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 hoat con 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 hoat con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi hoat con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi hoat con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.