Perhaps you should try some spelling variations:
"luong java java snippets" » "luong va java snippets"
"toan chi code snippets" » "toan cao code snippets", "tai chi code snippets", "luan chi code snippets", "toan cfd code snippets", "toan chi con snippets", "toan chi cong snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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 ("toan chi code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong java java snippets") OR ("toan chi code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( luong java java snippets ) or ( toan chi code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("luong java java snippets") or ("toan chi code snippets"))) or ("locating bug code slippers"))*.