Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"dang van tinh snippets" » "hoang van tinh snippets", "hang va tinh snippets", "dang van thinh snippets", "dang van minh snippets", "dang ban tinh snippets", "dang van tinh slippers"

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: (((("dang van tinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang van tinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dang van tinh snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang van tinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.