Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong cap can snippets" » "duong cap can snippets", "dong cac can snippets", "dong cao can snippets", "dong cap han snippets", "dong cap van snippets", "dong tap can snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dong cap can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cap can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cap can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cap can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.