Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac thi doan snippets" » "dac thai doan snippets", "dac thi hoan snippets", "dac thi loan snippets", "dan thi doan snippets", "dao thi doan snippets", "dam thi doan 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: (((("dac thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac thi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac thi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac thi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.