Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc duoc noi snippets" » "duoc duoc noi snippets", "hoc duoc noi snippets", "doc cuoc noi snippets", "doc duoc hoi snippets", "doc duoc moi snippets", "doc duong noi 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 duoc noi 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 duoc noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc duoc noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc duoc noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.