Perhaps you should try some spelling variations:
"van truong dao snippets" » "tang truong dao snippets", "xuan truong dao snippets", "vien truong dao snippets", "van truong dai snippets", "van truong cao snippets", "van truong bo snippets", "van truong dao 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 truong dao 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 truong dao snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van truong dao snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van truong dao snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.