Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc than can snippets" » "doc thanh can snippets", "doc phan can snippets", "doc thau can snippets", "doc than cap snippets", "doc than man snippets", "doc toan can 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 than can 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 than can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc than can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc than can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.