Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung dat toi snippets" » "dung va toi snippets", "dung tai toi snippets", "dung dat thoi snippets", "dung dat boi snippets", "dung dat tai 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 dat toi 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 dat toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.