Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giac duoc co snippets" » "giao duc co snippets", "gia duc co snippets", "giac duoc hoc snippets", "giac duong co snippets", "giac duoc hoi 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: (((("giac duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giac duoc co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giac duoc co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giac duoc co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.