Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua dan tom snippets" » "cua dang tom snippets", "cua ban tom snippets", "ca dan tom snippets", "cua dan toc snippets", "cua dan toi snippets", "cua dan toan 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: (((("cua dan tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua dan tom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua dan tom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua dan tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.