Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tranh hoa vo snippets" » "thanh hoa vo snippets", "trinh hoa vo snippets", "tranh ha vo snippets", "tranh hoa co 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: (((("tranh hoa vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tranh hoa vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tranh hoa vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tranh hoa vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.