Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"quoc sach va snippets" » "nuoc sach va snippets", "thuoc sach va snippets", "hoc sach va snippets", "quoc sach xa snippets", "quoc sach ha snippets", "quoc sach dao snippets", "quoc sach 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: (((("quoc sach 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: (((("quoc sach va snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc sach va snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc sach va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.