Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho phan do snippets" » "cho phan do snippets", "kho khan do snippets", "pho phan do snippets", "kho phan bo snippets", "kho phan co snippets", "kho phan mo 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 phan do 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 phan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho phan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho phan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.