Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"sat phan van snippets" » "sat nhan van snippets", "vat phan van snippets", "xuat phan van snippets", "sat pham van snippets", "sat thanh van snippets", "sat luan van snippets", "sat phan van 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: (((("sat phan van snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sat phan van snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sat phan van snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sat phan van snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.