Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phia dan so snippets" » "nghia dan so snippets", "hoa dan so snippets", "phi san so snippets", "phia dan soc snippets", "phia dan su snippets", "phia dan mo 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: (((("phia dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phia dan so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phia dan so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phia dan so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.