Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dot duy de snippets" » "do duy de snippets", "dot quy de snippets", "doi duy de snippets", "dot duy den snippets", "dot duy ke 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: (((("dot duy de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dot duy de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dot duy de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dot duy de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.