Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong sua hoi snippets" » "cong suat hoi snippets", "cong cua hoi snippets", "cong suc hoi snippets", "cong sua doi snippets", "cong sua voi 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 sua hoi 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 sua hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong sua hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong sua hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.