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