Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han co hoat snippets" » "han cao hoat snippets", "han che hoat snippets", "han toi hoat snippets", "phan co hoat snippets", "han cho hoat snippets", "nhan co hoat 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: (((("han co hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han co hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han co hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han co hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.