Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac don do snippets" » "cac dan do snippets", "cac mon do snippets", "cac doanh do snippets", "cac dong do snippets", "cac doan do snippets", "cac den do 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: (((("cac don do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac don do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac don do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac don do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.