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