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