Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung mot co snippets" » "dung mo co snippets", "dung co co snippets", "dung dat co snippets", "dung mot so snippets", "dung mot 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: (((("dung mot co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung mot co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mot co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mot co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.