Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra ky cong snippets" » "tra ke cong snippets", "tra ly cong snippets", "tra khu cong snippets", "trai ky cong snippets", "tra my cong snippets", "tra y cong 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: (((("tra ky cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra ky cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra ky cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra ky cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.