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