Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"truc cua can snippets" » "truc chua can snippets", "thuc cua can snippets", "truc cu can snippets", "truc cua cac snippets", "truc cua ban snippets", "truc cua dan 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 can 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 can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( truc cua can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truc cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.