Perhaps you should try some spelling variations:
"hoi nam van snippets" » "hoai nam van snippets", "hai nam van snippets", "hoc nam van snippets", "hoi nam dan snippets", "hoi nam va snippets", "hoi pham van snippets", "hoi nam van slippers"
"using low java snippets" » "using low java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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