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