Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung vinh du snippets" » "dung vinh code snippets", "dang vinh du snippets", "dung ninh du snippets", "quang vinh du snippets", "dung dinh du snippets", "dung vinh dieu snippets", "dung minh 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 vinh du 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 vinh du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung vinh du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vinh du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.