Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dem toi tue snippets" » "dem hoi tue snippets", "diep toi tue snippets", "dem tri tue snippets", "dem toi te snippets", "dem toi tu 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: (((("dem toi tue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dem toi tue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dem toi tue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dem toi tue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.