Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho tu cau snippets" » "kho mu cau snippets", "cho tu cau snippets", "pho tu cau snippets", "kho tu cac snippets", "kho cu cau snippets", "kho 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: (((("kho 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: (((("kho tu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho tu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho tu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.