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