Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu noi cong snippets" » "phu nguoi cong snippets", "phu tai cong snippets", "phu thi cong snippets", "phu doi cong snippets", "phu loi cong snippets", "phu nhi cong 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: (((("phu noi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu noi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu noi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu noi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.