Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen dem hoi snippets" » "chen den hoi snippets", "chem de hoi snippets", "chen wen hoi snippets", "chen dem toi snippets", "chen dep hoi snippets", "chen dam choi 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: (((("chen dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chen dem hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen dem hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.