Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"luong java java snippets" » "luong va java snippets"
"dung vi robot snippets" » "dung voi robot snippets", "dung _ robot snippets", "dung a robot snippets", "dung va robot snippets", "dung viet robot snippets", "dung tai robot 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: (((("luong java java snippets") or ("dung vi robot snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong java java snippets") OR ("dung vi robot snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( luong java java snippets ) or ( dung vi robot snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("luong java java snippets") or ("dung vi robot snippets"))) or ("locating bug code slippers"))*.