Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong su ton snippets" » "dang su ton snippets", "dong tu ton snippets", "dong luc ton snippets", "dong su lon snippets", "dong su toa snippets", "dong su trong 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 su ton 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 su ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong su ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong su ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.