Perhaps you should try some spelling variations:
"thanh phuoc cac snippets" » "thanh pho cac snippets", "hanh phuc cac snippets", "thanh phuc cac snippets", "thanh hoc cac snippets", "thanh duoc cac 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: (((("thanh phuoc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh phuoc cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh phuoc cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh phuoc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.