Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung hieu mo snippets" » "dung hieu code snippets", "dong hieu mo snippets", "dung tieu mo snippets", "trung hieu mo snippets", "dung hieu moi snippets", "dung hieu mot snippets", "dung hieu so 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 hieu mo 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 hieu mo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung hieu mo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hieu mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.