Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"phan tong va snippets" » "phan trong va snippets", "phan cong va snippets", "han tong va snippets", "phan thong va snippets", "phan tong van snippets", "phan tong va slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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