Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"van toan java snippets" » "van toan va snippets", "van tuan java snippets", "van tan java snippets", "van thanh java snippets", "van toan java 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: (((("hang java java snippets") or ("van toan java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang java java snippets") OR ("van toan java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( hang java java snippets ) or ( van toan java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang java java snippets") or ("van toan java snippets"))) or ("locating bugs code snippets"))*.