Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den hinh so snippets" » "dien hinh so snippets", "den chinh so snippets", "den tinh so snippets", "den dinh so snippets", "den hinh su 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: (((("den hinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den hinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den hinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den hinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.