Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong son cach snippets" » "dong von cach snippets", "dong san cach snippets", "hoang son cach snippets", "dong dong cach snippets", "dong song bach snippets", "dong song sach 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: (((("dong son 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: (((("dong son cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong son cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong son cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.