Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc va cao snippets" » "duoc va cao snippets", "hoc va cao snippets", "duc va cao snippets", "doc va cac snippets", "doc va co snippets", "doc va dao 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 va cao 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 va cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc va cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.