Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung dang do snippets" » "dung dang code snippets", "dung dan do snippets", "dung dong do snippets", "dung danh do snippets", "dung nang doc snippets", "dung dung doi snippets", "dung dang duc 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 dang do 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 dang do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung dang do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dang do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.