Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung chi den snippets" » "dung chi code snippets", "dung cho den snippets", "dung thi den snippets", "dung chien den snippets", "dung chi ben snippets", "dung chi dan snippets", "dung nhi den 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 chi den 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 chi den snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung chi den snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung chi den snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.