Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat minh hon snippets" » "mai minh hon snippets", "mot minh hon snippets", "nhat minh hon snippets", "mat minh hoa snippets", "mat minh son snippets", "mat manh hon 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: (((("mat minh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat minh hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat minh hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat minh hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.