Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cad thiet do snippets" » "cac thiet do snippets", "cam thiet do snippets", "can thiet do snippets", "cad nhiet do snippets", "cad thiet de snippets", "cad nhiet doi 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: (((("cad thiet 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: (((("cad thiet do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cad thiet do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cad thiet do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.