Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac san cao snippets" » "dac sac cao snippets", "cac san cao snippets", "dac nhan cao snippets", "dac san co snippets", "dac san cho snippets", "dac san bao 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: (((("dac san cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dac san cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac san cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac san cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.