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