Perhaps you should try some spelling variations:
"dung tinh cham snippets" » "dung tinh code snippets", "dang tinh cham snippets", "dung ninh cham snippets", "dung tin cham snippets", "dung trinh cham snippets", "dung tinh chat snippets", "dung tinh cam snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java 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 tinh cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tinh cham snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung tinh cham snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tinh cham snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.