Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"tat hang cau snippets" » "tat thang cau snippets", "dat hang cau snippets", "mat hang cau snippets", "tat hang dau snippets", "tat hang ca snippets", "tat nhung cau 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: (((("tat hang 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: (((("tat hang cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat hang cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat hang cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.