Perhaps you should try some spelling variations:
"luong nguon code snippets" » "huong nguyen code snippets", "luong nguon coi snippets", "luong nguon code slippers"
"dung dat code snippets" » "dung va code snippets", "dung tai code snippets", "dung rate code snippets", "dung dat de snippets", "dung dat code 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: (((("luong nguon code snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong nguon code snippets") OR ("dung dat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong nguon code snippets ) or ( dung dat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong nguon code snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))*.