Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau tac cua snippets" » "khau tai cua snippets", "cau thac cua snippets", "chau bac cua snippets", "hau tac quan snippets", "hau thuc cua 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: (((("hau tac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau tac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau tac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau tac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.