Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong lap don snippets" » "cong luan don snippets", "cong lang don snippets", "cong tac don snippets", "cong lap dong snippets", "cong la don snippets", "cong lap doi 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 lap don 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 lap don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong lap don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong lap don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.