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