Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc cua so snippets" » "truc chua so snippets", "thuc cua so snippets", "truc cu so snippets", "truc cua sro snippets", "truc cua bo snippets", "truc cua su 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: (((("truc cua so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truc cua so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc cua so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc cua so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.