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