Perhaps you should try some spelling variations:
"luong van code snippets" » "luong va code snippets", "duong van code snippets", "luong vat code snippets", "luong van de snippets", "luong van hoe snippets", "luong van cong snippets", "luong van 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"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung dat code snippets") or ("luong van code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dat code snippets") OR ("luong van code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dat code snippets ) or ( luong van code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dat code snippets") or ("luong van code snippets"))) or ("locating bug code snippets"))*.