Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap soc son snippets" » "phap hoc son snippets", "phap so son snippets", "phap coc son snippets", "phap ngoc son snippets", "phap hoc song snippets", "phap quoc son 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: (((("phap soc 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: (((("phap soc son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap soc son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap soc son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.