Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"doc cai cach snippets" » "doc loi cach snippets", "doc tai cac snippets", "doc va cach snippets", "doc hai cach snippets", "doc cao cach snippets", "doc chat cach 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: (((("doc cai cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc cai cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc cai cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc cai cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.