Perhaps you should try some spelling variations:
"van trinh phap snippets" » "van trinh phan snippets", "van trinh han snippets", "van trinh chat snippets", "van thinh phap snippets", "van tinh phap snippets", "dan trinh phap snippets", "van trinh phap slippers"
"using java java snippets" » "using data java snippets", "using java 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: (((("van trinh phap snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van trinh phap snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van trinh phap snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van trinh phap snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.