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