Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap cua tre snippets" » "tap quan tre snippets", "tiep cua tre snippets", "tap cua te snippets", "tap cuu tre snippets", "tap cua triet 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: (((("tap cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap cua tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap cua tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.