Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho tu cau snippets" » "cho tu cau snippets", "kho tu cau snippets", "phong tu cau snippets", "pho tu cac snippets", "pho cu cau snippets", "pho tu can 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: (((("pho tu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho tu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho tu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho tu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.