Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hong van cau snippets" » "hoang van cau snippets", "thong van cau snippets", "song van cau snippets", "hong van dau snippets", "hong van hau snippets", "hong van chat 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: (((("hong van cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong van cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong van cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong van cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.