Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang duy de snippets" » "nang du de snippets", "nang dua de snippets", "nang quy de snippets", "nang duy den snippets", "nang 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: (((("nang 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: (((("nang duy de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang duy de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang duy de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.