Perhaps you should try some spelling variations:
"van minh code snippets" » "van minh cong snippets", "van minh de snippets"
"dung mat co snippets" » "duong mat co snippets", "dung dat co snippets", "dung may co snippets", "dung vat co snippets", "dung mot co snippets"
"locating bug code snippets" » "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: (((("van minh code snippets") or ("dung mat co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van minh code snippets") OR ("dung mat co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van minh code snippets ) or ( dung mat co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van minh code snippets") or ("dung mat co snippets"))) or ("locating bug code snippets"))*.