Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"quan doi cham snippets" » "quan tri cham snippets", "quan li cham snippets", "quan hoi cham snippets", "quan goi cham snippets", "quan toc cham 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: (((("quan doi cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan doi cham snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan doi cham snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan doi cham snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.