Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc cuoc de snippets" » "doi cuoc de snippets", "dao cuoc de snippets", "doc buoc de snippets", "doc cuoc doi snippets", "doc cuoc yeu 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: (((("doc cuoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc cuoc de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc cuoc de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc cuoc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.