Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son tinh ho snippets" » "so tinh ho snippets", "don tinh ho snippets", "son binh ho snippets", "son tinh hoc snippets", "son tinh hoa snippets", "son tinh cho 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: (((("son tinh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son tinh ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son tinh ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son tinh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.