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