Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai van son snippets" » "bui van son snippets", "hai van son snippets", "mai van son snippets", "bai van dong snippets", "bai van cong snippets", "bai 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: (((("bai 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: (((("bai van son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai van son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai van son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.