Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong pha co snippets" » "cong phan co snippets", "cong pham co snippets", "cong ha co snippets", "cong phai co snippets", "cong pa co 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: (((("cong pha 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: (((("cong pha co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong pha co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong pha co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.