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