Perhaps you should try some spelling variations:
"rong thanh code snippets" » "dong thanh code snippets", "cong thanh code snippets", "truong thanh code snippets", "rong thanh cong snippets", "rong thanh de snippets", "rong thanh code slippers"
"anh java java snippets" » "anh va java snippets", "anh java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("anh java java snippets") or ("rong thanh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh java java snippets") OR ("rong thanh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh java java snippets ) or ( rong thanh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh java java snippets") or ("rong thanh code snippets"))) or ("locating bug code snippets"))*.