Perhaps you should try some spelling variations:
"rong lich han snippets" » "rong dich han snippets", "cong lich han snippets", "long lich han snippets", "rong lich can snippets", "rong lich thai snippets", "rong lich han slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("rong lich han snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("rong lich han snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( rong lich han snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("rong lich han snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.