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