Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua ham can snippets" » "cua tam can snippets", "cua nam can snippets", "cua am can snippets", "cua pham can snippets", "cua hau can snippets", "cua ham 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: (((("cua ham 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: (((("cua ham can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua ham can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua ham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.