Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cho hang cac snippets" » "cho thanh cac snippets", "cho phan cac snippets", "thi hang cac snippets", "cho hang ca snippets", "cho hang cau snippets", "cho bang cac snippets"
"locating bug code snippets" » "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: (((("cho hang cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho hang cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho hang cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho hang cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.