Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc phan bon snippets" » "hoc phan bon snippets", "duc phan bon snippets", "doc than bon snippets", "doc phan bo snippets", "doc phan cong snippets", "doc phan song 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 phan bon 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 phan bon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc phan bon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc phan bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.