Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong ba cu snippets" » "cong bao cu snippets", "cong ha cu snippets", "cong va cu snippets", "cong ba cau snippets", "cong ba chu snippets", "cong bat cu 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 ba cu 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 ba cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong ba cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ba cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.