Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong dat hoc snippets" » "dong vat hoc snippets", "dung dat hoc snippets", "dong ha hoc snippets", "dong dai hoc snippets", "dong dan hoc 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: (((("dong dat hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong dat hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dat hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dat hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.