Perhaps you should try some spelling variations:
"quoc nhanh cay snippets" » "quoc khanh cay snippets", "quoc hanh cay snippets", "quoc nhan cay snippets", "quoc nhanh ha snippets", "quoc nhanh bac snippets", "quoc nhanh va 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: (((("quoc nhanh cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc nhanh cay snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc nhanh cay snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc nhanh cay snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.