Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh van son snippets" » "trinh van son snippets", "dinh van son snippets", "tinh va son snippets", "tinh van dong snippets", "tinh van cong snippets", "tinh van sung 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: (((("tinh van son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tinh van son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh van son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh van son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.