Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam theo so snippets" » "dai theo so snippets", "nam theo so snippets", "dat theo so snippets", "dam theo bo snippets", "dam theo doi snippets", "dam theo don 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 theo so 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 theo so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam theo so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam theo so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.