Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"khoan hoi va snippets" » "khoan nhoi va snippets", "khoa hoi va snippets", "khoa hoc va snippets", "khoan hoi 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: (((("khoan hoi 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: (((("khoan hoi va snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoan hoi va snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan hoi va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.