Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua ba model snippets" » "cua a model snippets", "cua cad model snippets", "cua 1 model snippets", "cua ban model snippets", "cua bac model snippets", "cua bo model 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 ba model 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 ba model snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua ba model snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua ba model snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.