Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dac cao chu snippets" » "dac cho chu snippets", "dac co chu snippets", "bac cao chu snippets", "dac chao chu snippets", "dac cao cho 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 cao chu 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 cao chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dac cao chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dac cao chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.