Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam dan cach snippets" » "dam dan cac snippets", "dam dan canh snippets", "dam nhan cach snippets", "nam dan cach snippets", "dao dan cach snippets", "dam dac cach 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 dan cach 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 dan cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam dan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.