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