Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan khac co snippets" » "quang khai co snippets", "quan ha co snippets", "quan hai co snippets", "quan khac do snippets", "quan khac mo snippets", "quan khao co 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: (((("quan khac co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan khac co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan khac co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan khac co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.