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