Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang cua ca snippets" » "mang cua ca snippets", "hang cua ca snippets", "tang luan ca snippets", "tang cua cac snippets", "tang cua cay snippets", "tang cua can 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: (((("tang cua ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang cua ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cua ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cua ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.