Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hang hoa snippets" » "thi hang hoa snippets", "phi hung hoa snippets", "pham hang hoa snippets", "phi hang khoa snippets", "phi thanh hoa snippets", "phi hang va 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: (((("phi hang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi hang hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hang hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.