Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"co hoat son snippets" » "co hoa son snippets", "co hoat dong snippets", "co hoang son snippets", "cao hoat son snippets", "che hoat son snippets", "toi hoat son 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: (((("co hoat son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co hoat son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co hoat son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co hoat son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.