Perhaps you should try some spelling variations:
"dong dinh chuc snippets" » "dong kinh chuc snippets", "dang dinh chuc snippets", "dong ninh chuc snippets", "dong dinh chi snippets", "dong dinh thuy snippets", "dong dinh cuu snippets"
"dung java java snippets" » "dung va java 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 dinh chuc 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 dinh chuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dinh chuc snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dinh chuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.