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