Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoan van mo snippets" » "hoang van mo snippets", "hoa van mo snippets", "doan van mo snippets", "hoan van mao snippets", "hoan van do snippets", "hoan van ho 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: (((("hoan van mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoan van mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan van mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan van mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.