Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc can chan snippets" » "doc dan chan snippets", "doc cam chan snippets", "doc ban chan snippets", "hoc can chan snippets", "doc cao chan snippets", "doc chat chan 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 can chan 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 can chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc can chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc can chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.