Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam lan ong snippets" » "dam van ong snippets", "dam phan ong snippets", "pham lan ong snippets", "dam lan song snippets", "dam dan ong snippets", "dam lan huong 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 lan ong 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 lan ong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam lan ong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam lan ong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.