Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cu hoi snippets" » "dan cua hoi snippets", "dan ca hoi snippets", "dan su hoi snippets", "dan cau hoi snippets", "dan cuu hoi 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: (((("dan cu 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: (((("dan cu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.